simplify some logging calls

gallery_dl/config.py

@@ -57,7 +57,7 @@ def load(files=None, strict=False, fmt="json"):
                 confdict = parsefunc(file)
         except OSError as exc:
             if strict:
-                log.error("%s", exc)
+                log.error(exc)
                 sys.exit(1)
         except Exception as exc:
             log.warning("Could not parse '%s': %s", path, exc)

gallery_dl/downloader/http.py

@@ -99,7 +99,7 @@ class HttpDownloader(DownloaderBase):
                 msg = str(exc)
                 continue
             except Exception as exc:
-                self.log.warning("%s", exc)
+                self.log.warning(exc)
                 return False
 
             # check response
@@ -116,7 +116,7 @@ class HttpDownloader(DownloaderBase):
                 msg = "'{} {}' for '{}'".format(code, response.reason, url)
                 if code == 429 or 500 <= code < 600:  # Server Error
                     continue
-                self.log.warning("%s", msg)
+                self.log.warning(msg)
                 return False
             size = text.parse_int(size)
 

gallery_dl/extractor/pinterest.py

@@ -243,7 +243,7 @@ class PinterestAPI():
         if response.status_code == 404 or response.history:
             resource = self.extractor.subcategory.rpartition("-")[2]
             raise exception.NotFoundError(resource)
-        self.extractor.log.debug("%s", response.text)
+        self.extractor.log.debug("Server response: %s", response.text)
         raise exception.StopExtraction("API request failed")
 
     def _pagination(self, resource, options):

gallery_dl/extractor/tumblr.py

@@ -156,8 +156,8 @@ class TumblrExtractor(Extractor):
             invalid = types - POST_TYPES
             if invalid:
                 types = types & POST_TYPES
-                self.log.warning('invalid post types: "%s"',
+                self.log.warning("Invalid post types: '%s'",
-                                 '", "'.join(sorted(invalid)))
+                                 "', '".join(sorted(invalid)))
             return types
 
     @staticmethod