#8 0.6.1 Drop Debian text from manual page abook.1

[Jari Aalto]

Please generalize text in manual page from:

   This manual page documents briefly the abook program. This
   manual page was written for the Debian GNU/Linux
   distribution because the original program does not have a
   manual page.

to:

   This manual page documents briefly the abook program.

The last section already lists the Author and initial target system:

AUTHOR
       This manual page was written by Alan Ford
       <alan@whirlnet.co.uk>, for the Debian GNU/Linux
       system (but may be used by others).

[Raphaël]

fixed by 02ac0c
merged in 0.6.2