Wrapped DRD_() macro around all segment function names.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9160 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/drd/drd_mutex.c b/drd/drd_mutex.c
index e4ae3b1..4860fed 100644
--- a/drd/drd_mutex.c
+++ b/drd/drd_mutex.c
@@ -107,7 +107,7 @@
                             &MEI);
   }
 
-  sg_put(p->last_locked_segment);
+  DRD_(sg_put)(p->last_locked_segment);
   p->last_locked_segment = 0;
 }