pre-commit: check for file ends and trailing whitespaces

.pre-commit-config.yaml

@@ -4,6 +4,13 @@
 #
 
 repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+      - id: end-of-file-fixer
+        exclude: '^(contrib|m4)/.*'
+      - id: trailing-whitespace
+        exclude: '^((LICENSES|contrib)/.*|src/mtime_iso8601\.c$)'
   - repo: https://github.com/pre-commit/mirrors-clang-format
     rev: v19.1.6
     hooks: