Fix test.mk when no log is defined

When the $LOG variable is empty, do not remove the files

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/Test.mk b/Test.mk
index 655527c..a265286 100644
--- a/Test.mk
+++ b/Test.mk
@@ -36,7 +36,7 @@ check: uncheck $(LOG)
 	@./$< 2> $@
 
 clean:
-	rm -f $(LOG)
+	@test ! -z "$(LOG)" && rm -f $(LOG)
 
 uncheck: clean