httpd.pid storage location

[Scott Haneda]

This may be a strange question, but why is Apache2's pid file stored  
in the logs directory of Apache2?  I am doing some basic background on  
this, and some put it in var/run, in this case prefix first of course,  
but I do not find any official suggestion on the layout.

It does strike me as odd to store it in the logs folder, of all non MP  
installs, I do spend some time in logs directories, and have never met  
a pid on that side of town.
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