Merge pull request etcd-io#7502 from gyuho/scripts

test: mask go1.8 gosimple warnings

test

@@ -235,10 +235,17 @@ function fmt_pass {
 
 	if which gosimple >/dev/null; then
 		echo "Checking gosimple..."
-		simplResult=`gosimple ${STATIC_ANALYSIS_PATHS} 2>&1 || true`
-		if [ -n "${simplResult}" ]; then
-			echo -e "gosimple checking failed:\n${simplResult}"
+		gosimpleResult=`gosimple ${STATIC_ANALYSIS_PATHS} 2>&1 || true`
+		if [ ! -n "${gosimpleResult}" ]; then
+			continue
+		fi
+		# TODO: resolve these after go1.8 migration
+		SIMPLE_CHECK_MASK="S(1024)"
+		if egrep -v "$SIMPLE_CHECK_MASK" "${gosimpleResult}"; then
+			echo -e "gosimple checking ${path} failed:\n${gosimpleResult}"
 			exit 255
+		else
+			echo -e "gosimple warning:\n${gosimpleResult}"
 		fi
 	else
 		echo "Skipping gosimple..."