[4.1-b2]
* concurrent `mkdir -p' processes no longer fail when creating the
same hierarchy
+* argmatch.c has been fixed so that the unambiguous usage `ls --color=n'
+ no longer evokes an error.
+* now, specifying an improper argument for an option that accepts enumerated
+ values evokes diagnostics like this:
+ $ src/touch --time=x file
+ src/touch: invalid argument `x' for `--time'
+ Valid arguments are:
+ - `atime', `access', `use'
+ - `mtime', `modify'
+ Try `src/touch --help' for more information.
[4.1-b1]
* ls --quoting-style=c prints correct octal escapes for certain nonprinting
characters in file names.