Do not suggest to potentially use builtin echo

[andreaspe]

From man(1) echo on MacOS: Some shells may provide a builtin echo command which is similar or identical to this utility. Most notably, the builtin echo in sh(1) does not accept the -n option.

Following the setup instructions of the chart it's quite hard to spot if builtin echo is used which is why it might be better to use absolute path.

[till]

I can confirm what @andreaspe added here.

Once I started switching to bash, it worked as intended. Before, it basically send a base64 encoded value prefixed with -n to my k8s cluster.