It's a step in the right direction. You have to understand that for decades a vocal group of Unix die-hards has opposed any limitations whatsoever on the bytewi

It's a step in the right direction. You have to understand that for decades a vocal group of Unix die-hards has opposed any limitations whatsoever on the bytewise content of file names. The newline restriction in this latest version of POSIX may be modest, but it represents a dam breaking. When (obviously) the sky doesn't fall, the next version of POSIX will have a lot more filename cleanup.