Thread: pgsql: Avoid passing signed chars to functions ...

Log Message:
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Avoid passing signed chars to <ctype.h> functions ... same old
portability mistake as always.  Per buildfarm member pika.

Modified Files:
--------------
    pgsql/src/bin/psql:
        command.c (r1.228 -> r1.229)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/command.c?r1=1.228&r2=1.229)