fix doxygen brief in subzero header files

src/IceTargetLoweringX8664.cpp

Index: src/IceTargetLoweringX8664.cpp
diff --git a/src/IceTargetLoweringX8664.cpp b/src/IceTargetLoweringX8664.cpp
index c1692425224d1bb6013395cb25c1e2459c9a64cd..0efb5a4a60b8c2cb817deb1a0585e31762319661 100644
--- a/src/IceTargetLoweringX8664.cpp
+++ b/src/IceTargetLoweringX8664.cpp
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 ///
 /// \file
-/// This file implements the TargetLoweringX8664 class, which consists almost
+/// \brief implements the TargetLoweringX8664 class, which consists almost

[Jim Stichnoth, 2015/12/01 18:41:16]

capitalize Implements

[rkotlerimgtec, 2015/12/02 01:32:48]

Done.

 /// entirely of the lowering sequence for each high-level instruction.
 ///
 //===----------------------------------------------------------------------===//