Detecting user existence in a group is not always working

[travnick]

choco-docker-engine/tools/chocolateyInstall.ps1

Line 41 in 215d2f0

If (net localgroup $($pp.DockerGroup) | Select-String $groupUser -Quiet) {

There is an issue while detecting if user already exists in a group. This causes an error and terminates the instalation.

In my case, I have a username with parenthesis ()

This prints nothing:

echo "my user (123)" |Select-String "my user (123)"

But this one works:

echo "my user (123)" |Select-String "my user"