Change subprocess usage

Author: Przemyslaw Kudriawcew

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/Kudrixon/pre-commit_hook_static_path
-  rev: v1.1.2-beta
+  rev: v1.2.1-beta
   hooks:
     - id: check-static-path
       args: ['--keywords', '/home/tester', '/home/vtest', '--']

pre_commit_hooks/check_static_path.py

@@ -30,7 +30,7 @@ def findStringInRangeForFile(filename, keywords, changes_range):
 def findStringInRange(filenames, keywords):
     results = []
     for filename in filenames:
-        text = subprocess.run(['git', 'diff', "--unified=0", 'HEAD', filename], capture_output=True, text=True).stdout
+        text = subprocess.check_output(['git', 'diff', "--unified=0", 'HEAD', filename], universal_newlines=True)
         matches = extractMatches(text, pattern)
         changes_range = []
         for s in matches:
@@ -95,4 +95,4 @@ def main(argv: Union[Sequence[str], None] = None) -> int:
     return retval
 
 if __name__ == '__main__':
-    raise SystemExit(main())
+    raise SystemExit(main())