largefiles: string formatting typo in basestore._openstore where comma is used instead of modulo

hgext/largefiles/basestore.py

@@ -199,4 +199,4 b' def _openstore(repo, remote=None, put=Fa'
         except lfutil.storeprotonotcapable:
             pass
 
-    raise util.Abort(_('%s does not appear to be a largefile store'), path)
+    raise util.Abort(_('%s does not appear to be a largefile store') % path)