[PATCH] make rebuffer_line () return void

[Nick Clifton]

Hi Trevor,

> 2016-02-16  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>
> 
> 	* listing.c (rebuffer_line): Change return type to void.

Approved and applied.  Note - you missed one small thing - the
comment before the start of rebuffer_line which described its
return value.  I fixed this.

Cheers
  Nick