pgsql: Fix function headers not matching prototype in header file, per

Log Message:
-----------
Fix function headers not matching prototype in header file, per
compiler warnings on msvc.

Modified Files:
--------------
pgsql/src/bin/psql:
print.c (r1.107 -> r1.108)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/print.c?r1=1.107&r2=1.108)