util: sort paths in walkrepos() (fixes test failures in test-hgwebdir)

mercurial/util.py

@@ -1116,6 +1116,7 b' def walkrepos(path, followsym=False, see'
         seen_dirs = []
         _add_dir_if_not_there(seen_dirs, path)
     for root, dirs, files in os.walk(path, topdown=True, onerror=errhandler):
+        dirs.sort()
         if '.hg' in dirs:
             yield root # found a repository
             qroot = os.path.join(root, '.hg', 'patches')