Bug#237377: the pid file overwritten

[Robin Edgar - Tripany <red@tripany.com>]

`/usr/sbin/apachectl graceful`

stops apache, then apparently writes the /var/run/apache.pid file,
then fails to start apache or give an error.

`/etc/init.d/apache start`
then gives the following in the error.log

[Wed Mar  2 13:36:34 2005] [warn] pid file /var/run/apache.pid overwritten -- Unclean shutdown of previous Apache run?
[Wed Mar  2 13:36:35 2005] [notice] Apache/1.3.33 (Debian GNU/Linux) mod_gzip/1.3.26.1a PHP/4.3.10-8 mod_ssl/2.8.22 OpenSSL/0.9.7d mod_perl/1.
29 mod_chroot/0.4 configured -- resuming normal operations
[Wed Mar  2 13:36:35 2005] [notice] suEXEC mechanism enabled (wrapper: /usr/lib/apache/suexec)
[Wed Mar  2 13:36:35 2005] [notice] Accept mutex: sysvsem (Default: sysvsem)