Travis: do not fail when no log exists (e.g. perf).

diff --git a/.travis_test.sh b/.travis_test.sh
index a797b61..df088a1 100755 (executable)
--- a/.travis_test.sh
+++ b/.travis_test.sh
@@ -25,4 +25,4 @@ ${MAKE} TEST_OPTS="--soft --log-file ../${ACTION}.err" \
     MAL_IMPL=${MAL_IMPL} ${ACTION}^${IMPL}
 
 # no failure so remove error log
-rm ${ACTION}.err
+rm -f ${ACTION}.err || true