pgsql: Alter some gratuitous uses of "ANSI" when "SQL standard" might

Log Message:
-----------
Alter some gratuitous uses of "ANSI" when "SQL standard" might have been
meant or the reference to a standard was unnecessary.

Modified Files:
--------------
    pgsql/doc/src/sgml:
        ecpg.sgml (r1.89 -> r1.90)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ecpg.sgml?r1=1.89&r2=1.90)
    pgsql/src/backend/utils/adt:
        varchar.c (r1.131 -> r1.132)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/varchar.c?r1=1.131&r2=1.132)
    pgsql/src/include/catalog:
        pg_type.h (r1.206 -> r1.207)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_type.h?r1=1.206&r2=1.207)
    pgsql/src/pl/plpgsql/src:
        gram.y (r1.125 -> r1.126)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpgsql/src/gram.y?r1=1.125&r2=1.126)
    pgsql/src/test/regress/expected:
        select_distinct.out (r1.7 -> r1.8)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/select_distinct.out?r1=1.7&r2=1.8)
    pgsql/src/test/regress/sql:
        select_distinct.sql (r1.7 -> r1.8)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/select_distinct.sql?r1=1.7&r2=1.8)