(preferably `no') cost when operating in single-byte mode.
Remove all uses of the `register' keyword
-
-rm: add support for a -I option, like that from FreeBSD's rm:
- -I Request confirmation once if more than three files are being
- removed or if a directory is being recursively removed. This
- is a far less intrusive option than -i yet provides almost
- the same level of protection against mistakes.