[cogl] build: clean .log file in tests/conform dir

[Robert Bragg <rbragg src gnome org>]

commit 316a515f9b22f9728054971a6b8e69352bdff74a
Author: Robert Bragg <robert linux intel com>
Date:   Mon Mar 5 23:24:16 2012 +0000

    build: clean .log file in tests/conform dir
    
    When running the conformance tests we write to a .log file which wasn't
    being removed by make clean which was causing make release-check to
    fail.

 tests/conform/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/tests/conform/Makefile.am b/tests/conform/Makefile.am
index abdf997..684aaaa 100644
--- a/tests/conform/Makefile.am
+++ b/tests/conform/Makefile.am
@@ -167,3 +167,4 @@ DISTCLEANFILES += ../../build/win32/vs9/test-conformance-cogl.vcproj	\
 # we override the clean-generic target to clean up the wrappers so
 # we cannot use CLEANFILES
 clean-generic: clean-wrappers
+	$(QUIET_RM)rm -f .log