svn commit: r200633 - head/usr.bin/uniq

[David Schultz]

On Thu, Dec 17, 2009, Jaakko Heinonen wrote:
>   Sync getline() with comm(1):
>   
>    - Prevent overflowing of the buffer length variable in getline() by
>      limiting its maximum value.
>    - Exit if reallocf(3) fails in getline(). Failure was silently
>      considered as end-of-file.

We should consider using getline(3) from libc, rather than
hand-rolled versions of almost the same thing that are copy-pasted
in multiple places.  The only catch is I need to check in the wide
character version of getline() I've had sitting in my tree for
months.  I'll try to get on that this weekend.