Correct msg to detect idempotent yum groupinstall (#37858)

The message text used to check stderr for a warning about
groupinstall in order to determine if a change occurred is specific
to the version of yum that is in RHEL7 and newer. This change simply
removes a couple words off the end in order to only use text found
in the warning message in older versions of yum.

Fixes #35982

Signed-off-by: Adam Miller <admiller@redhat.com>

lib/ansible/modules/packaging/os/yum.py

@@ -770,7 +770,7 @@ def exec_install(module, items, action, pkgs, res, yum_basecmd):
     res['msg'] += err
     res['changed'] = True
 
-    if ('Nothing to do' in out and rc == 0) or ('does not have any packages to install' in err):
+    if ('Nothing to do' in out and rc == 0) or ('does not have any packages' in err):
         res['changed'] = False
 
     if rc != 0: