fix doxygen brief in subzero header files

src/IceTypeConverter.h

Index: src/IceTypeConverter.h
diff --git a/src/IceTypeConverter.h b/src/IceTypeConverter.h
index c61423c654a9df1ee7be677ff62119fcc03f712d..c206f7e0438031672fc5ac42c32e3f38d1951a57 100644
--- a/src/IceTypeConverter.h
+++ b/src/IceTypeConverter.h
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 ///
 /// \file
-/// This file defines how to convert LLVM types to ICE types, and ICE types to
+/// \brief Defines how to convert LLVM types to ICE types, and ICE types to

[Jim Stichnoth, 2015/12/02 21:50:38]

Reflow to 80-col.

[rkotlerimgtec, 2015/12/02 23:58:14]

Done.

 /// LLVM types.
 ///
 //===----------------------------------------------------------------------===//