rss2email: Fix "Python 3.2 or newer" typo

Signed-off-by: François Boulogne <fboulogne sciunto org>
Signed-off-by: W. Trevor King <[email protected]>

Author: François Boulogne

rss2email/__init__.py

@@ -49,5 +49,5 @@
 
 if _sys.version_info < (3, 2):
     raise ImportError(
-        "rss2email requires Python 3.2, but you're using:\n{}".format(
-            _sys.version))
+        "rss2email requires Python 3.2 or newer, but you're using:\n{}"
+        .format(_sys.version))