fix doxygen brief in subzero header files

src/IceGlobalInits.h

Index: src/IceGlobalInits.h
diff --git a/src/IceGlobalInits.h b/src/IceGlobalInits.h
index 82e5cde7131d7d02db78db5be63234a5121920fa..3a19f47f6048742622393d43f852f30547e447ec 100644
--- a/src/IceGlobalInits.h
+++ b/src/IceGlobalInits.h
@@ -8,10 +8,11 @@
 //===----------------------------------------------------------------------===//
 ///
 /// \file
-/// This file declares the representation of function declarations, global
-/// variable declarations, and the corresponding variable initializers in
-/// Subzero. Global variable initializers are represented as a sequence of
-/// simple initializers.
+/// \brief Declares the representation of function declarations, global variable
+/// declarations, and the corresponding variable initializers in Subzero.
+///
+/// Global variable initializers are represented as a sequence of simple
+/// initializers.
 ///
 //===----------------------------------------------------------------------===//