--- old/src/share/vm/gc/g1/g1Allocator.hpp	2015-05-27 21:55:51.909065267 -0400
+++ new/src/share/vm/gc/g1/g1Allocator.hpp	2015-05-27 21:55:50.544987866 -0400
@@ -76,7 +76,7 @@
 
    void decrease_used(size_t bytes) {
      assert(_summary_bytes_used >= bytes,
-            err_msg("invariant: _summary_bytes_used: "SIZE_FORMAT" should be >= bytes: "SIZE_FORMAT,
+            err_msg("invariant: _summary_bytes_used: " SIZE_FORMAT " should be >= bytes: " SIZE_FORMAT,
                 _summary_bytes_used, bytes));
      _summary_bytes_used -= bytes;
    }