rmg: only output the correct command for perlivp

This has tripped up multiple release managers.

Co-authored-by: Philippe Bruhat (BooK) <[email protected]>
Co-authored-by: Thibault Duponchelle <[email protected]>

Author: 3 people

Porting/release_managers_guide.pod

@@ -1121,11 +1121,19 @@ paths.
 Note that the results may be different without a F<.git/> directory,
 which is why you should test from the tarball.
 
+=for checklist skip BLEAD-POINT
+
 =head4 Run the Installation Verification Procedure utility
 
  $ bin/perlivp
+ ...
+ All tests successful.
+ $
+
+=for checklist skip RC MAINT BLEAD-FINAL
+
+=head4 Run the Installation Verification Procedure utility
 
- # Or, perhaps:
  $ bin/perlivp5.X.Y
  ...
  All tests successful.