added debugging to figure out what's up with become_user and sudo runas gid not found

tests/ansible/integration/action/make_tmp_path.yml

@@ -128,6 +128,10 @@
     # readonly homedir
     #
 
+    - name: DEBUGGING - dump all users and their groups and group ids; become_user fails with sudo gid error
+      shell: dscl . list /Users | grep -v '^_' | xargs -I{} -t -n1 sh -c "id -Gn {} | python -c \"from __future__ import print_function; import sys; import grp; print([line for line in sys.stdin.read().strip().replace('\n', ' ').split(' ')])\""
+      
+
     - name: "Try writing to temp directory for the readonly_homedir user"
       become: true
       become_user: mitogen__readonly_homedir