Обсуждение: pgsql: Get rid of perror(), substitute some better phrased error

Log Message:
-----------
Get rid of perror(), substitute some better phrased error messages.
malloc() doesn't set errno, so most uses were buggy anyway.

Modified Files:
--------------
    pgsql/src/bin/initdb:
        initdb.c (r1.65 -> r1.66)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/initdb/initdb.c.diff?r1=1.65&r2=1.66)
    pgsql/src/bin/psql:
        print.c (r1.52 -> r1.53)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/print.c.diff?r1=1.52&r2=1.53)
    pgsql/src/bin/scripts:
        common.c (r1.12 -> r1.13)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/scripts/common.c.diff?r1=1.12&r2=1.13)
    pgsql/src/interfaces/ecpg/preproc:
        ecpg.c (r1.90 -> r1.91)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/preproc/ecpg.c.diff?r1=1.90&r2=1.91)
    pgsql/src/interfaces/libpq:
        fe-auth.c (r1.94 -> r1.95)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-auth.c.diff?r1=1.94&r2=1.95)
        fe-print.c (r1.54 -> r1.55)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-print.c.diff?r1=1.54&r2=1.55)