Fix gl error debug print.



git-svn-id: http://skia.googlecode.com/svn/trunk@2356 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrGLUtil.cpp b/gpu/src/GrGLUtil.cpp
index 5637cf3..8056e66 100644
--- a/gpu/src/GrGLUtil.cpp
+++ b/gpu/src/GrGLUtil.cpp
@@ -19,7 +19,7 @@
                   const char* call) {
     uint32_t err = GR_GL_GET_ERROR(gl);
     if (GR_GL_NO_ERROR != err) {
-        GrPrintf("---- glGetError %x", GR_GL_GET_ERROR(gl));
+        GrPrintf("---- glGetError %x", err);
         if (NULL != location) {
             GrPrintf(" at\n\t%s", location);
         }