Emacs-tag and some comment fix for all ARM, CellSPU, Hexagon, MBlaze, MSP430, PPC, PTX, Sparc, X86, XCore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150878 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PTX/PTXAsmPrinter.h b/lib/Target/PTX/PTXAsmPrinter.h
index d5ea4db..74c8d58 100644
--- a/lib/Target/PTX/PTXAsmPrinter.h
+++ b/lib/Target/PTX/PTXAsmPrinter.h
@@ -1,4 +1,4 @@
-//===-- PTXAsmPrinter.h - Print machine code to a PTX file ----------------===//
+//===-- PTXAsmPrinter.h - Print machine code to a PTX file ------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //