Support redirect for head request for downloads

Author: jessevz

htpclient/download.py

@@ -17,7 +17,7 @@ def download(url, output, no_header=False):
 
             # Check header
             if not no_header:
-                head = session.head(url)
+                head = session.head(url, allow_redirects=True)
                 # not sure if we only should allow 200/301/302, but then it's present for sure
                 if head.status_code not in [200, 301, 302]:
                     logging.error("File download header reported wrong status code: " + str(head.status_code))