fix start.sh to work on macos (#5019)
remove extra leading / in volume mount command
diff --git a/core/standalone/start.sh b/core/standalone/start.sh
index 3fc92b1..437e1fb 100755
--- a/core/standalone/start.sh
+++ b/core/standalone/start.sh
@@ -20,7 +20,7 @@
docker run --rm -d \
-h openwhisk --name openwhisk \
-p 3233:3233 -p 3232:3232 \
- -v //var/run/docker.sock:/var/run/docker.sock \
+ -v /var/run/docker.sock:/var/run/docker.sock \
"$IMAGE" "$@"
docker exec openwhisk waitready
case "$(uname)" in