fix doxygen brief in subzero header files

src/IceGlobalContext.cpp

Index: src/IceGlobalContext.cpp
diff --git a/src/IceGlobalContext.cpp b/src/IceGlobalContext.cpp
index 94a5343fef8b9d965bb453d474bf654beb98b627..324630e64809b146343c26adb0741ce8e54d40e5 100644
--- a/src/IceGlobalContext.cpp
+++ b/src/IceGlobalContext.cpp
@@ -8,8 +8,8 @@
 //===----------------------------------------------------------------------===//
 ///
 /// \file
-/// This file defines aspects of the compilation that persist across multiple
-/// functions.
+/// \brief Defines aspects of the compilation that persist across

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

Reflow to 80-col.

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

Done.

+/// multiple functions.
 ///
 //===----------------------------------------------------------------------===//