squid -k rotate restarts url_rewriters!

[Chris Woodfield <rekoil@xxxxxxxxxxxxx>]

I just put a squid system with url_rewriter children into production.  
Alongside this we have a script that regularly runs squid -k rotate,  
then FTPs the log.1 files to a remote site for backup/processing.

The issue I've noticed is that every time squid -k rotate is run,  
squid also stops and restarts all of its url_rewriter children. While  
this happens fairly quickly, it's a step I'd rather not have it do if  
necessary, particularly under the load these boxes are expected to be  
able to handle.

Consider this a feature request (and if 3.0 does this already, please  
let me know): do not restart url_rewriter children on a USR1 signal  
(or whichever signal squid -k rotate sends in 2.6 STABLE18).

Thanks,

-C