fix: return 1 to announce changed files instead of the number of chan…

…ged files

pre_commit_hooks/emacs_vhdl_formatter.py

@@ -37,7 +37,7 @@ def main() -> int:
     cmd += Config.base_args
     cmd.append(lisp_code)
 
-    num_files_formatted = 0
+    return_code = 0
     for filename in args.filenames:
         with open(filename, "r+") as f:
             with subprocess.Popen(
@@ -57,7 +57,7 @@ def main() -> int:
                         f.write(formatted_code)
                         logging.info(f"{filename} successfully formatted")
                         if file_content != formatted_code:
-                            num_files_formatted += 1
+                            return_code = 1
                     else:
                         logging.error(f"{errs}")
 
@@ -66,7 +66,7 @@ def main() -> int:
                     _, errs = proc.communicate()
                     logging.error(f"Subprocess timed out: {errs}")
                     return proc.returncode
-    return num_files_formatted
+    return return_code
 
 
 def construct_lisp_code(tab_width: int, custom_eval: str) -> str: