mention kill 0

[Dan Jacobson]

The kill(1) man page doesn't mention "kill 0".
/bin/kill 0 #scripts proceed no further
The bash man page mentions kill 0, but not in its main kill paragraph.
The bash man page doesn't mention kill -1.
The bash "help kill" bulrb doesn't mention kill 0 or -1.
The kill(1) man page, as of
procps:
  Installed: 1:3.2.6-2.2
still looks a mess:
       Name     Num   Action    Description
       ()                                                                       
   ()#very long wrapped line

       0          0   n/a       exit code indicates if a signal may be sent