[gardening] Use consistent header formatting.

Author: practicalswift

test/1_stdlib/Inputs/FoundationBridge/FoundationBridge.h

@@ -1,4 +1,4 @@
-//===--- FoundationBridge.h --------------------------------------*- C++ -*-===//
+//===--- FoundationBridge.h -------------------------------------*- C++ -*-===//
 //
 // This source file is part of the Swift.org open source project
 //
@@ -52,4 +52,4 @@ void takesData(NSData *object);
 NSData *returnsData();
 BOOL identityOfData(NSData *data);
 
-NS_ASSUME_NONNULL_END
+NS_ASSUME_NONNULL_END