create pre-commit hook for xlint

.config/git/hooks/void-packages/pre-commit

@@ -0,0 +1,12 @@
+#!/bin/bash
+# xlint all changed templates
+
+EX_ERR=1
+
+FILES=$(git diff --name-only --staged | grep template)
+for FILE in ${FILES}; do
+	stat "${FILE}" &> /dev/null || continue
+	echo "xlint ${FILE}:"
+	xlint $FILE || exit $EX_ERR
+	echo "all clear."
+done