[fansly] emit debug logging message when using a 'token' (#4401)

gallery_dl/extractor/fansly.py

@@ -179,17 +179,18 @@ class FanslyAPI():
 
     def __init__(self, extractor):
         self.extractor = extractor
-
-        token = extractor.config("token")
-        if not token:
-            self.extractor.log.warning("No 'token' provided")
-
         self.headers = {
             "fansly-client-ts": None,
             "Origin"          : extractor.root,
-            "authorization"   : token,
         }
 
+        if token := extractor.config("token"):
+            self.headers["authorization"] = token
+            self.extractor.log.debug(
+                "Using authorization 'token' %.5s...", token)
+        else:
+            self.extractor.log.warning("No 'token' provided")
+
     def account(self, username):
         endpoint = "/v1/account"
         params = {"usernames": username}