src: fix qa issues

src/maintainers

@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 
+
 """
 Original author: XGQT
 Licensed under the ISC License
@@ -13,12 +14,13 @@ How to use:
  - run this script
 """
 
+
 import os
 import os.path
 import xml.etree.ElementTree as ET
 
 
-metadatas = [
+METADATAS = [
     os.path.join(dp, f)
     for dp, _, filenames in os.walk(".")
     for f in filenames if os.path.splitext(f)[1] == '.xml'
@@ -26,7 +28,7 @@ metadatas = [
 
 
 if __name__ == '__main__':
-    for metadata in metadatas:
+    for metadata in METADATAS:
         try:
             _, cat, pkg, _ = metadata.split("/")
             print("Package: %s/%s" % (cat, pkg))