--- a/mercurial/config.py	Tue Sep 11 00:12:07 2012 +0200
+++ b/mercurial/config.py	Tue Sep 11 08:36:09 2012 -0700
@@ -67,9 +67,9 @@
         return self._data.get(section, {}).get(item, default)
 
     def backup(self, section, item):
-        """return a tuple allowing restore to reinstall previous values
+        """return a tuple allowing restore to reinstall a previous value
 
-        The main reason we need it is because it handle the "no data" case.
+        The main reason we need it is because it handles the "no data" case.
         """
         try:
             value = self._data[section][item]