pgsql: Restore previous psql behavior of not printing useless trailing

Log Message:
-----------
Restore previous psql behavior of not printing useless trailing spaces
after the data in the last column on a line.

Modified Files:
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pgsql/src/bin/psql:
print.c (r1.82 -> r1.83)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/print.c.diff?r1=1.82&r2=1.83)