Fix .cpp files claiming to be header files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211334 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Support/Atomic.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  This header file implements atomic operations.
+//  This file implements atomic operations.
 //
 //===----------------------------------------------------------------------===//
 

lib/Support/DynamicLibrary.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  This header file implements the operating system DynamicLibrary concept.
+//  This file implements the operating system DynamicLibrary concept.
 //
 // FIXME: This file leaks ExplicitSymbols and OpenedHandles!
 //

lib/Support/Host.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  This header file implements the operating system Host concept.
+//  This file implements the operating system Host concept.
 //
 //===----------------------------------------------------------------------===//
 

lib/Support/Process.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  This header file implements the operating system Process concept.
+//  This file implements the operating system Process concept.
 //
 //===----------------------------------------------------------------------===//
 

lib/Support/Program.cpp

@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  This header file implements the operating system Program concept.
+//  This file implements the operating system Program concept.
 //
 //===----------------------------------------------------------------------===//