Fix off-by-one error when checking workspace_layout arguments
Fix off-by-one error when checking workspace_layout arguments

sleep-walker/sway,4e554c4c/sway,SirCmpwn/sway,taiyu-len/sway,taiyu-len/sway,1ace/sway,ascent12/sway,ptMuta/sway,ascent12/sway,1ace/sway,4e554c4c/sway,ascent12/sway,johalun/sway,1ace/sway,taiyu-len/sway,sleep-walker/sway