[libc++][nfc] Fixes emacs magic marker.

mordante · mordante · commit 2374ae436284 · 2023-09-09T14:43:12.000+02:00
diff --git a/libcxx/include/mdspan b/libcxx/include/mdspan
@@ -1,4 +1,4 @@
-// -*-C++ - *-
+// -*- C++ -*-
 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-// --C++ - -`
	`1`	`+// -- C++ --`
`2`	`2`	`//===----------------------------------------------------------------------===//`
`3`	`3`	`//`
`4`	`4`	`// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.`