Make file header comment consistent: extend the whole 80 cols to fill the line

llvm-svn: 20039
diff --git a/llvm/lib/Target/Alpha/AlphaTargetMachine.h b/llvm/lib/Target/Alpha/AlphaTargetMachine.h
index d67dd3f..1666242 100644
--- a/llvm/lib/Target/Alpha/AlphaTargetMachine.h
+++ b/llvm/lib/Target/Alpha/AlphaTargetMachine.h
@@ -1,4 +1,4 @@
-//===-- AlphaTargetMachine.h - Define TargetMachine for Alpha -*- C++ -*-----=//
+//===-- AlphaTargetMachine.h - Define TargetMachine for Alpha ---*- C++ -*-===//
 // 
 //                     The LLVM Compiler Infrastructure
 //