use table reference directly rather than copying the name
use a define for mailname path
remove unused defines
remove unused imsg
add missing entry
reduce the default limits for the feedback mechanism.
spacing
The code is confusing because it looks like an off-by-one can happen,
but the error would have been caught earlier.  Explicitely handle the
case where strlen is 0 to be safe.
sort include
fix memory leak in lka