Remove existing log

sympl-tests

@@ -168,6 +168,9 @@ DEBUG               |$DEBUG
 "
 
 TIMESTAMP="$(date +%s)"
+
+if [ -f "$LOG" ]; then rm "$LOG" ; fi
+
 #_echo "Starting run at $(date ; if [ "$TEST_PATH" != "./tests.d" ] ; then echo -n ", test path: '$TEST_PATH'" ; fi )"
 _centre = Starting
 for script in $( find $TEST_PATH -type f -executable | sort ) ; do