Canonicalize header guards into a common format.
Add header guards to files that were missing guards. Remove #endif comments
as they don't seem common in LLVM (we can easily add them back if we decide
they're useful)
Changes made by clang-tidy with minor tweaks.
llvm-svn: 215558
diff --git a/llvm/tools/llvm-diff/DiffLog.h b/llvm/tools/llvm-diff/DiffLog.h
index 43e318a..8eb53ff 100644
--- a/llvm/tools/llvm-diff/DiffLog.h
+++ b/llvm/tools/llvm-diff/DiffLog.h
@@ -11,8 +11,8 @@
//
//===----------------------------------------------------------------------===//
-#ifndef _LLVM_DIFFLOG_H_
-#define _LLVM_DIFFLOG_H_
+#ifndef LLVM_TOOLS_LLVM_DIFF_DIFFLOG_H
+#define LLVM_TOOLS_LLVM_DIFF_DIFFLOG_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"