PATCH: nroff detection wrong, by default uses mantype=cat

[Michael Tokarev]

Pekka Savola wrote:
> 
[]
> Please take a look at the configure without a patch:
> 
> --8<--
> for as_dir in /usr/bin:/usr/ucb
                      ^^^^^
> do
>   IFS=$as_save_IFS
    ^^^^^^^^^^^^^^^^
I assume that IFS was changed somewhere before this for_loop, and now it
is restored to it's original value (why w/o quotes?!).  I *suspect* there
should be IFS=: right before this loop.  If there is no such assignment,
it should be autoconf's bug.

Regards,
 Michael.