pgsql: Remove feof(stdin) calls related to when to prompt for a

Log Message:
-----------
Remove feof(stdin) calls related to when to prompt for a password,
leftovers from when the password was read from stdin.

Modified Files:
--------------
pgsql/contrib/oid2name:
oid2name.c (r1.33 -> r1.34)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/oid2name/oid2name.c?r1=1.33&r2=1.34)
pgsql/contrib/pgbench:
pgbench.c (r1.83 -> r1.84)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/pgbench/pgbench.c?r1=1.83&r2=1.84)
pgsql/contrib/vacuumlo:
vacuumlo.c (r1.37 -> r1.38)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/vacuumlo/vacuumlo.c?r1=1.37&r2=1.38)
pgsql/src/bin/pg_dump:
pg_backup_db.c (r1.81 -> r1.82)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_backup_db.c?r1=1.81&r2=1.82)
pg_dumpall.c (r1.116 -> r1.117)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dumpall.c?r1=1.116&r2=1.117)
pgsql/src/bin/psql:
startup.c (r1.153 -> r1.154)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/startup.c?r1=1.153&r2=1.154)
pgsql/src/bin/scripts:
common.c (r1.33 -> r1.34)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/scripts/common.c?r1=1.33&r2=1.34)