Use safer makedirs function

[sunshinekitty]

This is the equivalent of mkdir -p, mkdir will fail if you need to create more than one level of folders.

[tonioo]

@sunshinekitty Sorry for my late answer. Can you tell me why do you need this modification?

[sunshinekitty]

mkdir will fail if you need to create more than one level of folders

e.g. set home_dir in the [dovecot] section to /mnt/mail/dovecot, if /mnt/mail doesn't exist it will fail, using makedirs is safer

[tonioo]

Indeed, but in this particular example, the /mnt/mail/dovecot is not created by the installer directly but by a call to useradd...

[sunshinekitty]

i don't remember the issue exactly that i ran into 22 days ago at this point, but a child dir was not created properly and the installer crapped out

merge or close, i don't care

[kryskool]

I prefer to close this PR, because if subdirectory creation failed, it indicate that there is a problem.

@sunshinekitty on which distro that problem appear ?

[ksaadDE]

Does it work, does it not? Is it closed?^^