pgsql: Suppress signed-vs-unsigned-char warnings.

Log Message:
-----------
Suppress signed-vs-unsigned-char warnings.

Modified Files:
--------------
    pgsql/src/backend/catalog:
        pg_conversion.c (r1.25 -> r1.26)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/pg_conversion.c.diff?r1=1.25&r2=1.26)
    pgsql/src/backend/commands:
        copy.c (r1.249 -> r1.250)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/copy.c.diff?r1=1.249&r2=1.250)
    pgsql/src/backend/libpq:
        pqcomm.c (r1.179 -> r1.180)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/libpq/pqcomm.c.diff?r1=1.179&r2=1.180)
        pqformat.c (r1.38 -> r1.39)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/libpq/pqformat.c.diff?r1=1.38&r2=1.39)
    pgsql/src/backend/postmaster:
        pgstat.c (r1.107 -> r1.108)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/pgstat.c.diff?r1=1.107&r2=1.108)
    pgsql/src/backend/tcop:
        fastpath.c (r1.81 -> r1.82)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/tcop/fastpath.c.diff?r1=1.81&r2=1.82)
        postgres.c (r1.461 -> r1.462)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/tcop/postgres.c.diff?r1=1.461&r2=1.462)
    pgsql/src/backend/utils/adt:
        ascii.c (r1.24 -> r1.25)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/ascii.c.diff?r1=1.24&r2=1.25)
        encode.c (r1.14 -> r1.15)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/encode.c.diff?r1=1.14&r2=1.15)
        like.c (r1.60 -> r1.61)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/like.c.diff?r1=1.60&r2=1.61)
        like_match.c (r1.10 -> r1.11)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/like_match.c.diff?r1=1.10&r2=1.11)
        regexp.c (r1.57 -> r1.58)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/regexp.c.diff?r1=1.57&r2=1.58)
        selfuncs.c (r1.187 -> r1.188)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/selfuncs.c.diff?r1=1.187&r2=1.188)
        varbit.c (r1.45 -> r1.46)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/varbit.c.diff?r1=1.45&r2=1.46)
        varlena.c (r1.134 -> r1.135)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/varlena.c.diff?r1=1.134&r2=1.135)
    pgsql/src/backend/utils/mb:
        conv.c (r1.53 -> r1.54)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conv.c.diff?r1=1.53&r2=1.54)
        mbutils.c (r1.50 -> r1.51)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/mbutils.c.diff?r1=1.50&r2=1.51)
        wchar.c (r1.44 -> r1.45)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/wchar.c.diff?r1=1.44&r2=1.45)
    pgsql/src/backend/utils/mb/conversion_procs/ascii_and_mic:
        ascii_and_mic.c (r1.9 -> r1.10)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/ascii_and_mic/ascii_and_mic.c.diff?r1=1.9&r2=1.10)
    pgsql/src/backend/utils/mb/conversion_procs/cyrillic_and_mic:
        cyrillic_and_mic.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/cyrillic_and_mic/cyrillic_and_mic.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/euc_cn_and_mic:
        euc_cn_and_mic.c (r1.9 -> r1.10)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/euc_cn_and_mic/euc_cn_and_mic.c.diff?r1=1.9&r2=1.10)
    pgsql/src/backend/utils/mb/conversion_procs/euc_jp_and_sjis:
        euc_jp_and_sjis.c (r1.11 -> r1.12)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/euc_jp_and_sjis/euc_jp_and_sjis.c.diff?r1=1.11&r2=1.12)
    pgsql/src/backend/utils/mb/conversion_procs/euc_kr_and_mic:
        euc_kr_and_mic.c (r1.9 -> r1.10)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/euc_kr_and_mic/euc_kr_and_mic.c.diff?r1=1.9&r2=1.10)
    pgsql/src/backend/utils/mb/conversion_procs/euc_tw_and_big5:
        euc_tw_and_big5.c (r1.9 -> r1.10)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/euc_tw_and_big5/euc_tw_and_big5.c.diff?r1=1.9&r2=1.10)
    pgsql/src/backend/utils/mb/conversion_procs/latin2_and_win1250:
        latin2_and_win1250.c (r1.9 -> r1.10)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/latin2_and_win1250/latin2_and_win1250.c.diff?r1=1.9&r2=1.10)
    pgsql/src/backend/utils/mb/conversion_procs/latin_and_mic:
        latin_and_mic.c (r1.9 -> r1.10)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/latin_and_mic/latin_and_mic.c.diff?r1=1.9&r2=1.10)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_ascii:
        utf8_and_ascii.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_ascii/utf8_and_ascii.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_big5:
        utf8_and_big5.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_big5/utf8_and_big5.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_cyrillic:
        utf8_and_cyrillic.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_cyrillic/utf8_and_cyrillic.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_euc_cn:
        utf8_and_euc_cn.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_euc_cn/utf8_and_euc_cn.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_euc_jp:
        utf8_and_euc_jp.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_euc_jp/utf8_and_euc_jp.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_euc_kr:
        utf8_and_euc_kr.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_euc_kr/utf8_and_euc_kr.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_euc_tw:
        utf8_and_euc_tw.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_euc_tw/utf8_and_euc_tw.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_gb18030:
        utf8_and_gb18030.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_gb18030/utf8_and_gb18030.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_gbk:
        utf8_and_gbk.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_gbk/utf8_and_gbk.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_iso8859:
        utf8_and_iso8859.c (r1.13 -> r1.14)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_iso8859/utf8_and_iso8859.c.diff?r1=1.13&r2=1.14)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_iso8859_1:
        utf8_and_iso8859_1.c (r1.11 -> r1.12)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_iso8859_1/utf8_and_iso8859_1.c.diff?r1=1.11&r2=1.12)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_johab:
        utf8_and_johab.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_johab/utf8_and_johab.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_sjis:
        utf8_and_sjis.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_sjis/utf8_and_sjis.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_uhc:
        utf8_and_uhc.c (r1.10 -> r1.11)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_uhc/utf8_and_uhc.c.diff?r1=1.10&r2=1.11)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_win1250:
        utf8_and_win1250.c (r1.11 -> r1.12)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_win1250/utf8_and_win1250.c.diff?r1=1.11&r2=1.12)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_win1252:
        utf8_and_win1252.c (r1.3 -> r1.4)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_win1252/utf8_and_win1252.c.diff?r1=1.3&r2=1.4)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_win1256:
        utf8_and_win1256.c (r1.11 -> r1.12)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_win1256/utf8_and_win1256.c.diff?r1=1.11&r2=1.12)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_win1258:
        utf8_and_win1258.c (r1.1 -> r1.2)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_win1258/utf8_and_win1258.c.diff?r1=1.1&r2=1.2)
    pgsql/src/backend/utils/mb/conversion_procs/utf8_and_win874:
        utf8_and_win874.c (r1.11 -> r1.12)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/conversion_procs/utf8_and_win874/utf8_and_win874.c.diff?r1=1.11&r2=1.12)
    pgsql/src/bin/pg_dump:
        pg_backup_custom.c (r1.31 -> r1.32)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_backup_custom.c.diff?r1=1.31&r2=1.32)
    pgsql/src/bin/psql:
        mbprint.c (r1.16 -> r1.17)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/mbprint.c.diff?r1=1.16&r2=1.17)
        mbprint.h (r1.7 -> r1.8)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/mbprint.h.diff?r1=1.7&r2=1.8)
        print.c (r1.73 -> r1.74)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/print.c.diff?r1=1.73&r2=1.74)
    pgsql/src/include/mb:
        pg_wchar.h (r1.61 -> r1.62)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/mb/pg_wchar.h.diff?r1=1.61&r2=1.62)
    pgsql/src/interfaces/libpq:
        fe-exec.c (r1.174 -> r1.175)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-exec.c.diff?r1=1.174&r2=1.175)
        fe-misc.c (r1.119 -> r1.120)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-misc.c.diff?r1=1.119&r2=1.120)
        libpq-fe.h (r1.118 -> r1.119)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/libpq-fe.h.diff?r1=1.118&r2=1.119)