release_managers_guide: clarify YAML regeneration

Make it clear that you use the current perl, not a system perl,
and that the result may not have any changes.

diff --git a/Porting/release_managers_guide.pod b/Porting/release_managers_guide.pod
index a348fcf..d976bf5 100644 (file)
--- a/Porting/release_managers_guide.pod
+++ b/Porting/release_managers_guide.pod
@@ -701,10 +701,11 @@ Be sure to commit your change:
 
 =head3 run makemeta to update META files
 
-    $ perl Porting/makemeta
+    $ ./perl -Ilib Porting/makemeta
 
 Be sure to commit any changes (if applicable):
 
+    $ git status   # any changes?
     $ git commit -m 'Update META files' META.*
 
 =head3 build, test and check a fresh perl