File WMMail-fewargs.patch of Package WindowMaker-applets

--- src/properties.c
+++ src/properties.c
@@ -497,7 +497,7 @@
 
   if (anim->mask == 0)
   {
-    wmessage("XPM file '%s' does not have a transparent colour");
+    wmessage("XPM file '%s' does not have a transparent colour",path);
     exit(-1);
   }
 }