Resolve fmt errors

Author: Sakib25800

src/bors/event.rs

@@ -15,7 +15,7 @@ pub enum BorsRepositoryEvent {
     PullRequestOpened(PullRequestOpened),
     /// When a pull request is reopened.
     PullRequestReopened(PullRequestReopened),
-    /// When a new commit is pushed to the branch. This includes when a commit is pushed, when a commit tag is pushed, 
+    /// When a new commit is pushed to the branch. This includes when a commit is pushed, when a commit tag is pushed,
     /// when a branch is deleted or when a tag is deleted.
     PushToBranch(PushToBranch),
     /// A workflow run on Github Actions or a check run from external CI system has been started.