Now detects tmux operation no permitted error
Now detects tmux operation no permitted error

Detects the following error.
https://github.com/dgibbs64/linuxgsm/issues/184

SingingTree/linuxgsm,Sodierlow/linuxgsm,Maxximou5/linuxgameservers,zunnu/linuxgsm,kyroskoh/linuxgsm,dgibbs64/linuxgsm,Maxximou5/linuxgameservers,SingingTree/linuxgsm,Sodierlow/linuxgsm,BogusCurry/linuxgsm,zunnu/linuxgsm,BogusCurry/linuxgsm,kyroskoh/linuxgsm,GameServerManagers/LinuxGSM,GameServerManagers/LinuxGSM,dgibbs64/linuxgsm