[Pkg-shadow-devel] Valid group/user names, a bug?

[joel]

I recently installed shadow-4.0.18.1 and got some troubles with my user/group 
names. It seems as since shadow version 4-ish, it's no longer possible to 
have dots in user or group names.

Is there a reason not to allow user or group names like john.doe?

(Small patch to fix the issue for me attached)

Regards
Joel Forsberg
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