Never add temporary directories to repo

This requires at least Git 1.9.0.

run

@@ -43,6 +43,6 @@ fi
 printf "%s\n" "${profiles[@]}" | LC_ALL=C sort >dockerhub-metadata.profiles
 
 # git stuffs
-git add --all
+git add --all -- ':!.tmp.*'
 git commit --message 'Automatic run'
 git push