--- a/hgext/gpg.py	Mon Feb 08 15:06:26 2010 +0100
+++ b/hgext/gpg.py	Mon Feb 08 15:36:34 2010 +0100
@@ -90,7 +90,7 @@
             if not l:
                 continue
             yield (l.split(" ", 2), (context, ln))
-            ln +=1
+            ln += 1
 
     # read the heads
     fl = repo.file(".hgsigs")