Avoid printing a blank line when there was no error.

l0kod · May 6, 2015 · 126e65c · 126e65c
1 parent e40148f
commit 126e65c
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/xdot.py b/xdot.py
@@ -1568,7 +1568,8 @@ def run_filter(self, dotcode):
         else:
             xdotcode, error = p.communicate(dotcode)
         error = error.rstrip()
-        sys.stderr.write(error + '\n')
+        if error:
+            sys.stderr.write(error + '\n')
         if p.returncode != 0:
             dialog = gtk.MessageDialog(type=gtk.MESSAGE_ERROR,
                                        message_format=error,