Correct 'git clone' command syntax
Correct 'git clone' command syntax

The 'git clone' command in development.pod doesn't actually work.  This
corrects the syntax.

Signed-off-by: Ask Bjørn Hansen <1c8f09270fc33a393af3eaf0b2ebf58eb9bbbcc2@develooper.com>

smtpd/qpsmtpd,sieutruc/qpsmtpd,priyadi/qpsmtpd,salvis/qpsmtpd,vetinari/qpsmtpd,priyadi/qpsmtpd,vetinari/qpsmtpd,salvis/qpsmtpd,priyadi/qpsmtpd,smtpd/qpsmtpd,msimerson/qpsmtpd,sieutruc/qpsmtpd,msimerson/qpsmtpd,sieutruc/qpsmtpd