Remove acquisitions permission requirement on catalogue/showmarc.pl

This script is linked to from z39.50 search as well as acquisitions.
cataloguing/z3950_search.pl requires only the 'catalogue' flag, so
requiring only that permission here.  A user without acquisitions permissions
would get a login instead of the record display without this change.

Signed-off-by: Galen Charlton <galen.charlton@liblime.com>

catalogue/showmarc.pl

@@ -52,7 +52,7 @@ my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
         query           => $input,
         type            => "intranet",
         authnotrequired => 0,
-        flagsrequired   => { acquisition => 1  },
+        flagsrequired   => { catalogue => 1  },
         debug           => 1,
     }
 );