Consistently format errors in CI scripts (#2762)

script/clang-format

@@ -1,6 +1,9 @@
 #!/usr/bin/env python3
 
+from helpers import print_error_for_file, get_output, git_ls_files, filter_changed
 import argparse
+import click
+import colorama
 import multiprocessing
 import os
 import queue
@@ -9,11 +12,6 @@ import subprocess
 import sys
 import threading
 
-import click
-
-sys.path.append(os.path.dirname(__file__))
-from helpers import get_output, git_ls_files, filter_changed
-
 
 def run_format(args, queue, lock, failed_files):
     """Takes filenames out of queue and runs clang-format on them."""
@@ -29,11 +27,7 @@ def run_format(args, queue, lock, failed_files):
         proc = subprocess.run(invocation, capture_output=True, encoding='utf-8')
         if proc.returncode != 0:
             with lock:
-                print()
-                print("\033[0;32m************* File \033[1;32m{}\033[0m".format(path))
-                print(proc.stdout)
-                print(proc.stderr)
-                print()
+                print_error_for_file(path, proc.stderr)
                 failed_files.append(path)
         queue.task_done()
 
@@ -43,6 +37,8 @@ def progress_bar_show(value):
 
 
 def main():
+    colorama.init()
+
     parser = argparse.ArgumentParser()
     parser.add_argument('-j', '--jobs', type=int,
                         default=multiprocessing.cpu_count(),