Outdated documentation for configuration flags

[Marc Patermann]

Jens Erat schrieb (07.08.2014 11:41 Uhr):

> in the imapd compilation documentation of the current 2.4.17 release [1], there seems to be an updated `configure` option:
> 
>    --disable-cyradm
>    Do not compile the cyradm administrative client.
two dashes "--"

> Running `./configure —disable-cyradm` gives a warning
> 
>> configure: WARNING: unrecognized options: —disable-cyradm
one dash "-"?

Marc