Fix typo and wording
diff --git a/Lib/packaging/command/install_distinfo.py b/Lib/packaging/command/install_distinfo.py
index e85aaf7..39ad960 100644
--- a/Lib/packaging/command/install_distinfo.py
+++ b/Lib/packaging/command/install_distinfo.py
@@ -27,7 +27,7 @@
         ('no-record', None,
          "do not generate a RECORD file"),
         ('no-resources', None,
-         "do not generate a RESSOURCES list installed file"),
+         "do not generate a RESOURCES file"),
     ]
 
     boolean_options = ['requested', 'no-record', 'no-resources']