--- a/mercurial/store.py	Tue May 04 13:28:42 2021 -0400
+++ b/mercurial/store.py	Fri Apr 30 16:13:02 2021 -0700
@@ -629,7 +629,7 @@
         fp.close()
 
     def _checkentries(self, fp, warn):
-        """ make sure there is no empty string in entries """
+        """make sure there is no empty string in entries"""
         if b'' in self.entries:
             fp.seek(0)
             for n, line in enumerate(util.iterfile(fp)):