test: display failure output for gosimple

test

@@ -115,7 +115,7 @@ function fmt_tests {
 	if which gosimple >/dev/null; then
 		echo "gosimple is installed..."
 		for path in $GOSIMPLE_UNUSED_PATHS; do
-			simplResult=$(gosimple $REPO_PATH/${path})
+			simplResult=`gosimple $REPO_PATH/${path} || true`
 			if [ -n "${simplResult}" ]; then
 				echo -e "gosimple checking ${path} failed:\n${simplResult}"
 				exit 255