don't rant about $$

scripts/pre-commit

@@ -77,7 +77,7 @@ check_file() {
 for file in $(git diff --cached -p --name-status | cut -c3-); do
   case "${file}" in
     *.md) echo "check file ${file}"
-      check_file "${file}" '[^`]\$[^$`]*\$' ;;
+      check_file "${file}" '[^`]\$[^$`]\+\$' ;;
   esac
 done
 exit