create-directory doesn't raise an error when the requested directory already exists

[Mario Domenech Goulart]

Changing that behavior in C5 would cause too much trouble, but we can change that in C6.

$ touch foo
$ csi -e '(begin (import (chicken file)) (create-directory "foo"))'
$ echo $?
0

If the new behavior is implemented, please update ​https://wiki.call-cc.org/porting-c5-to-c6