kill trailing whitespace

mercurial/tags.py

@@ -245,7 +245,6 def _readtagcache(ui, repo):
         cachefile.close()               # ignore rest of file
         
     repoheads = repo.heads()
-
     # Case 2 (uncommon): empty repo; get out quickly and don't bother
     # writing an empty cache.
     if repoheads == [nullid]: