Add Emacs hints to Alarm.inc.

Also removes some trailing whitespace and fixes one 80-column violation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64094 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Unix/Host.inc b/lib/System/Unix/Host.inc
index 205ce23..1bd6da5 100644
--- a/lib/System/Unix/Host.inc
+++ b/lib/System/Unix/Host.inc
@@ -1,10 +1,10 @@
- //===- llvm/System/Unix/Host.inc --------------------------------*- C++ -*-===//
-// 
+ //===- llvm/System/Unix/Host.inc -------------------------------*- C++ -*-===//
+//
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
-// 
+//
 //===----------------------------------------------------------------------===//
 //
 // This file implements the UNIX Host support.