Remove the unnecessary action local variable

modules/git/functions/git-info

@@ -70,7 +70,6 @@ omodload 'trap'
 # Gets the Git special action (am, bisect, cherry, merge, rebase).
 # Borrowed from vcs_info and edited.
 function _git-action {
-  local action=''
   local action_dir
   local git_dir="$(git-dir)"
 
@@ -80,13 +79,12 @@ function _git-action {
     "${git_dir}/../.dotest"; do
     if [[ -d "$action_dir" ]] ; then
       if [[ -f "${action_dir}/rebasing" ]] ; then
-        action='rebase'
+        print 'rebase'
       elif [[ -f "${action_dir}/applying" ]] ; then
-        action='am'
+        print 'am'
       else
-        action='am/rebase'
+        print 'am/rebase'
       fi
-      print "$action"
       return 0
     fi
   done