netdev/tree_match: include commas in diffstat regex

If there's a patch set that contains pure dt-bindings changes and isn't
marked as 'net' or 'net-next', it will fail to be detected through
required_files, because the r_diffstat and r_header regexes assume a
file name is composed of letters, numbers, slashes, dots, hyphens,
underscores.

Actually, dt-bindings file names also have a comma: vendor,schema.yml.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>

Author: vladimiroltean

netdev/tree_match.py

@@ -84,8 +84,8 @@ def _tree_name_should_be_local_files(raw_email):
     foreign_found = False
 
     lines = raw_email.split('\n')
-    r_diffstat = re.compile(r'^\s*([-\w/._]+)\s+\|\s+\d+\s*[-+]*\s*$')
-    r_header = re.compile(r'\+\+\+ b/([-\w/._]+)$')
+    r_diffstat = re.compile(r'^\s*([-\w/._,]+)\s+\|\s+\d+\s*[-+]*\s*$')
+    r_header = re.compile(r'\+\+\+ b/([-\w/._,]+)$')
     for line in lines:
         match = r_header.match(line)
         if not match: