make name lower-case, to match all other benches



git-svn-id: http://skia.googlecode.com/svn/trunk@3793 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/RegionBench.cpp b/bench/RegionBench.cpp
index 7ac2886..fe6d777 100644
--- a/bench/RegionBench.cpp
+++ b/bench/RegionBench.cpp
@@ -75,7 +75,7 @@
 
     RegionBench(void* param, int count, Proc proc, const char name[]) : INHERITED(param) {
         fProc = proc;
-        fName.printf("Region_%s_%d", name, count);
+        fName.printf("region_%s_%d", name, count);
 
         SkRandom rand;
         for (int i = 0; i < count; i++) {