[Piglit] [PATCH] clearbuffer-display-lists: Turn off concurrent.

[Eric Anholt]

The concurrent flag makes the test render into an FBO, and the FBO
doesn't have GL_BACK, so the intended clears never happen and the test
always fails.
---
 tests/all.tests |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tests/all.tests b/tests/all.tests
index 3424578..7818adb 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -838,7 +838,7 @@ add_concurrent_test(gl30, 'bindfragdata-link-error')
 add_concurrent_test(gl30, 'bindfragdata-nonexistent-variable')
 add_concurrent_test(gl30, 'clearbuffer-depth')
 add_concurrent_test(gl30, 'clearbuffer-depth-stencil')
-add_concurrent_test(gl30, 'clearbuffer-display-lists')
+add_plain_test(gl30, 'clearbuffer-display-lists')
 add_concurrent_test(gl30, 'clearbuffer-invalid-drawbuffer')
 add_concurrent_test(gl30, 'clearbuffer-invalid-buffer')
 add_concurrent_test(gl30, 'clearbuffer-mixed-format')
-- 
1.7.9