Fail for warnings in pre-commit to promote incremental changes

Author: codingjoe

relint-pre-commit.sh

@@ -1,4 +1,4 @@
 #!/usr/bin/env sh
 
 set -eo pipefail
-git diff --staged | relint --diff "${@:1}"
+git diff --staged | relint --diff -W "${@:1}"