Use dry-run to check for clang-format errors instead of inplace editing

scripts/check-format.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+# Go to repository root
+cd "$(dirname "$0")/.." || exit 2
+
+find ./src ./test -iname '*.h' -o -iname '*.cpp' | xargs clang-format -Werror -ferror-limit=1 --dry-run