Add changed_when to shellcheck script

roles/vim/tasks/main.yml

@@ -34,7 +34,9 @@
 # some Arch derivatives don't have the package (arch32, archarm)
 - name: Run shellcheck script
   script: scripts/shellcheck_binary_fix.sh
+  register: shellcheck_script
   when: ansible_distribution == 'Archlinux'
+  changed_when: "'there is nothing to do' not in shellcheck_script.stdout"
 
 - name: Remove ~/.vim/colors/ directory
   file: