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group id instead of the process id. (This covers the case of /bin/sh instances which fork/exec commands passed via -c. In such cases, sending a signal to the stored process id would sent it to the /bin/sh process itself, not the forked child.) Add error reporting to sending signals. git-svn-id: file:///var/www/svn.irssi.org/SVN/irssi/trunk@5174 dbcabf3a-b0e7-0310-adc4-f8d773084564