(split from main repo) Miscellaneous tidying

- Formatting
- Typos
- Rename file to match type name
- Annotations
- Document exception

Author: drewnoakes

FormGitReview.cs

@@ -31,11 +31,6 @@ public sealed partial class FormGitReview : GitExtensionsForm, IGitUICommandsSou
 
         public event EventHandler<GitUICommandsChangedEventArgs> UICommandsChanged;
 
-        private void OnGitUICommandsChanged(GitUICommands oldcommands)
-        {
-            UICommandsChanged?.Invoke(this, new GitUICommandsChangedEventArgs(oldcommands));
-        }
-
         private GitUICommands _uiCommands;
         public GitUICommands UICommands
         {
@@ -44,7 +39,7 @@ public GitUICommands UICommands
             {
                 var oldCommands = _uiCommands;
                 _uiCommands = value;
-                OnGitUICommandsChanged(oldCommands);
+                UICommandsChanged?.Invoke(this, new GitUICommandsChangedEventArgs(oldCommands));
             }
         }