Update winrm error message to provide correct options
Update winrm error message to provide correct options

The error message regarding negotiate when on non-windows platforms
specifies an incorrect option alternative. This commit improves that
error message.

MsysTechnologiesllc/knife-windows,namjae/knife-windows,ClogenyTechnologies/knife-windows,offslinker/knife-windows,ClogenyTechnologies/knife-windows,chef/knife-windows,mwrock/knife-windows,chef/knife-windows,MsysTechnologiesllc/knife-windows,offslinker/knife-windows,RobbertJanSW/knife-windows,RobbertJanSW/knife-windows,namjae/knife-windows,mwrock/knife-windows