Merge branch '22-update-branch-check' into 'master'

#22 changed method of branch state check to use grep instead of wildcard...

Closes #22

See merge request ansible-roles/drupal!10

templates/scripts/update/update.jinja2

@@ -15,8 +15,7 @@ branch="$(git rev-parse --abbrev-ref HEAD)"
 
 if [ $force -eq 0 ]; then
   echo '> check for changes'
-  OUTPUT=$(git remote show origin)
-  if [[ $OUTPUT == *"$branch "*"pushes to $branch "*"(up to date)"* ]]; then
+  if git remote show origin | grep "^ *$branch  *pushes to $branch  *(up to date)" >/dev/null; then
     echo "> unchanged, cancel"
     exit
   fi