ps.map: init PROJ transformation object

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@72608 15284696-431f-4ddb-bdfa-cd5b030d7da7

ps/ps.map/do_geogrid.c

@@ -287,6 +287,7 @@ void init_proj(void)
 
     /* Out Info (latlong equivalent of In Info */
     info_out.pj = NULL;
+    info_trans.def = NULL;
 
     if (GPJ_init_transform(&info_in, &info_out, &info_trans) < 0)
 	G_fatal_error(_("Unable to initialize coordinate transformation"));