Bug#1513: bin/kill segfaults if invoked instead of killall

[Austin Donnelly <and1000@cam.ac.uk>]

>Package: bsdutils
>Version: 1.3-1
>
>chiark:~> /bin/kill -HUP syslogd
>Segmentation fault (core dumped)
>chiark:~>
[...core dump snipped...]

There were a number of bugs in /bin/kill, most due to the poor code
quality making loops difficult to decipher.

A large number of signals were missing from the signal list, and a
variety of out-by-one errors were liberally sprinkled around :)

This is fixed in bsdutils-1.4-1, out now.

Austin