[TYPO3-dev] Install tool removes dots from admin usernames

[Martin Kutschker]

Stefano Kowalke schrieb:
> 
> It A-Za-z0-9 the same like [:alnum:]?

[:alnum:] is actually locale dependent (it might allow therefore
accented characters), so in this case A-Za-z0-9 is exactly what we want.

Masi