Add missing period

src/IceUtils.h

 //===- subzero/src/IceUtils.h - Utility functions ---------------*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
-// This file declares some utility functions
+// This file declares some utility functions.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef SUBZERO_SRC_ICEUTILS_H
 #define SUBZERO_SRC_ICEUTILS_H
 
 #include <climits>
 #include <condition_variable>
 
 namespace Ice {
@@ skipping 157 matching lines @@
   }
   T *pop() {
     assert(!empty());
     return WorkItems[Front++ & MaxStaticSizeMask];
   }
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEUTILS_H