Format according to the black standard

bdfr/site_downloaders/self_post.py

@@ -17,27 +17,29 @@ class SelfPost(BaseDownloader):
         super().__init__(post)
 
     def find_resources(self, authenticator: Optional[SiteAuthenticator] = None) -> list[Resource]:
-        out = Resource(self.post, self.post.url, lambda: None, '.txt')
-        out.content = self.export_to_string().encode('utf-8')
+        out = Resource(self.post, self.post.url, lambda: None, ".txt")
+        out.content = self.export_to_string().encode("utf-8")
         out.create_hash()
         return [out]
 
     def export_to_string(self) -> str:
         """Self posts are formatted here"""
-        content = ("## ["
-                   + self.post.fullname
-                   + "]("
-                   + self.post.url
-                   + ")\n"
-                   + self.post.selftext
-                   + "\n\n---\n\n"
-                   + "submitted to [r/"
-                   + self.post.subreddit.title
-                   + "](https://www.reddit.com/r/"
-                   + self.post.subreddit.title
-                   + ") by [u/"
-                   + (self.post.author.name if self.post.author else "DELETED")
-                   + "](https://www.reddit.com/user/"
-                   + (self.post.author.name if self.post.author else "DELETED")
-                   + ")")
+        content = (
+            "## ["
+            + self.post.fullname
+            + "]("
+            + self.post.url
+            + ")\n"
+            + self.post.selftext
+            + "\n\n---\n\n"
+            + "submitted to [r/"
+            + self.post.subreddit.title
+            + "](https://www.reddit.com/r/"
+            + self.post.subreddit.title
+            + ") by [u/"
+            + (self.post.author.name if self.post.author else "DELETED")
+            + "](https://www.reddit.com/user/"
+            + (self.post.author.name if self.post.author else "DELETED")
+            + ")"
+        )
         return content