pdb: Make gimp-plug-ins-query public

The Plug-in Browser plug-in makes a call
to gimp-plug-ins-query to get plug-in
information. Since this PDB was made
private, the browser could no longer load
plug-in information.
This patch makes gimp-plug-ins-query
public again so it can be used.

app/pdb/plug-in-cmds.c

@@ -219,7 +219,7 @@ register_plug_in_procs (GimpPDB *pdb)
   /*
    * gimp-plug-ins-query
    */
-  procedure = gimp_procedure_new (plug_ins_query_invoker, TRUE);
+  procedure = gimp_procedure_new (plug_ins_query_invoker, FALSE);
   gimp_object_set_static_name (GIMP_OBJECT (procedure),
                                "gimp-plug-ins-query");
   gimp_procedure_set_static_help (procedure,

pdb/groups/plug_in.pdb

@@ -22,8 +22,6 @@ sub plug_ins_query {
 
     &andy_pdb_misc('1998');
 
-    $lib_private = 1;
-
     @inargs = (
 	{ name  => 'search_string', type => 'string', no_validate => 1,
 	  desc  => 'If not an empty string then use this as a search pattern' }