fix pre-commit hook

.githooks/pre-commit

@@ -1,8 +1,10 @@
 #!/bin/bash
 set -e;
+
+found=0
 git diff --cached --name-only | grep -q '.js$' && found=1
 if [ $found == 1 ]; then
-    make lint-js || exit 1
+    npm --prefix client run lint || exit 1
     npm run test --prefix client || exit 1
 fi