Fix namespace flag in install help text
The shorthand flag for `--linkerd-namespace` is `-L` not `-l`.
@@ -117,7 +117,7 @@ resources for the Linkerd control plane. This command should be followed by
linkerd install config | kubectl apply -f -
# Install Linkerd into a non-default namespace.
- linkerd install config -l linkerdtest | kubectl apply -f -`,
+ linkerd install config -L linkerdtest | kubectl apply -f -`,
RunE: func(cmd *cobra.Command, args []string) error {
err := flag.ApplySetFlags(values, flags)
if err != nil {
