File osc-force-commit-msg.patch of Package osc

Index: osc/commandline.py
===================================================================
--- osc/commandline.py	(revision 2480)
+++ osc/commandline.py	(working copy)
@@ -925,7 +925,8 @@
         pacs = findpacs(args)
 
         for p in pacs:
-            msg = ''
+            if (not opts.message) and not (opts.file):
+                sys.exit('No commit message supplied.')
             if opts.message:
                 msg = opts.message
             elif opts.file: