pgsql: Fix recent problems with BSD indent, including indenting past 80

Log Message:
-----------
Fix recent problems with BSD indent, including indenting past 80
columns, shifting comment to the right when more than 150 'else if'
clauses were used, and update typedefs for 8.1.X.

NetBSD patched updated, with documentation.

Modified Files:
--------------
    pgsql/src/tools:
        find_typedef (r1.3 -> r1.4)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/tools/find_typedef.diff?r1=1.3&r2=1.4)
    pgsql/src/tools/pgindent:
        README (r1.18 -> r1.19)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/tools/pgindent/README.diff?r1=1.18&r2=1.19)
        indent.bsd.patch (r1.6 -> r1.7)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/tools/pgindent/indent.bsd.patch.diff?r1=1.6&r2=1.7)
        pgindent (r1.83 -> r1.84)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/tools/pgindent/pgindent.diff?r1=1.83&r2=1.84)