typo (dotnet#18413)

Author: KevinRansom

vsintegration/src/FSharp.Editor/Common/Extensions.fs

@@ -97,10 +97,10 @@ type ConnectionPointSubscription = System.IDisposable option
 
 // Usage example:
 //  If a handler is None, to not handle that event
-//  let subscription = subscribeToTextViewEvents (textView, onChangeCaretHandler, onKillFocus, OnSetFocus)
+//  let subscription = subscribeToTextViewEvents (textView, onChangeCaretHandler, onKillFocus, onSetFocus)
 //  Unsubscribe using subscription.Dispose()
-let subscribeToTextViewEvents (textView: IVsTextView, onChangeCaretHandler, onKillFocus, OnSetFocus) : ConnectionPointSubscription =
-    let handler = TextViewEventsHandler(onChangeCaretHandler, onKillFocus, OnSetFocus)
+let subscribeToTextViewEvents (textView: IVsTextView, onChangeCaretHandler, onKillFocus, onSetFocus) : ConnectionPointSubscription =
+    let handler = TextViewEventsHandler(onChangeCaretHandler, onKillFocus, onSetFocus)
 
     match textView with
     | :? IConnectionPointContainer as cpContainer ->