Fix print_banner: accept optional logger to avoid NoneType error in store

Author: amina825

web/client/codechecker_client/cli/store.py

@@ -938,7 +938,7 @@ def main(args):
     client = libclient.setup_client(args.product_url)
     protocol, host, port, product_name = \
         product.split_product_url(args.product_url)
-    print_banner(protocol, host, port)
+    print_banner(protocol, host, port, LOG)
     prod_client = libclient.setup_product_client(protocol,
                                                  host,
                                                  port,

web/client/codechecker_client/cmd_line_client.py

@@ -1829,11 +1829,11 @@ def get_announcement_msg(protocol, host, port):
     return config_client.getNotificationBannerText()
 
 
-def print_banner(protocol, host, port):
+def print_banner(protocol, host, port, log=None):
     """Fetch and print the server banner if one is set."""
     encoded = get_announcement_msg(protocol, host, port)
     if encoded:
-        LOG.info("Announcement: %s", convert.from_b64(encoded))
+        (log or LOG).info("Announcement: %s", convert.from_b64(encoded))
 
 
 def handle_login(args):