Merge pull request #1320 from dmach/fix-diff-no-args

Fix 'diff' command when no files are specified

osc/commandline.py

@@ -4645,6 +4645,11 @@ Please submit there instead, or use --nodevelproject to force direct submission.
             if not rev2:
                 for i in pac.get_diff(rev1):
                     diff += b''.join(i)
+            else:
+                if args == ["."]:
+                    # parseargs() returns ["."] (list with workdir) if no args are specified
+                    # "." is illegal filename that causes server to return 400
+                    files = None
                 else:
                     files = args
                 diff += server_diff_noex(pac.apiurl, pac.prjname, pac.name, rev1,