NSScroller: clamp the value below zero as well as above one#495

fredkiefer merged 2 commits into

gnustep:mastergnustep/libs-gui:masterfrom

DTW-Thalion:fix/nsscroller-clamp-floatvalueDTW-Thalion/libs-gui:fix/nsscroller-clamp-floatvalueCopy head branch name to clipboard