Make "restart" require "return(restart)" like all other terminating actions.



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This was forgotten when number of HTTP headers was made dynamic.

The lack of this function may have made ESI includes weird.

Should be merged to 2.1



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take time if there are hundreds of thousands of possible filedescriptors.

Instead do it once, right at startup in the manager process, and then
keep track of the fd's we use there, and have the child clean only
up to the max seen, with an allowance for filedescriptors held by
libraries (syslog, resolver, pidfiles etc)

Fixes	#699



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the file descriptor, but this causes no trouble apart from a wasted
filedescriptor in the parent process.

But closing it is better :-)

Fixes: 	#675
Spotted & Patch by:	Edmondas Girkantas


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roughly a factor 9.



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2.1 candidate



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miss/hit ESI processing



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Fixes #668


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critbit cooling-list, making this check invalid.

Spotted by:	Justin Pasher



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picking up the object body.

Fixes #667



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backend connection are chronological in the shmlog.



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Fixes #655



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syntax change



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tfheen:  Please review



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"single -d" mode, which nobody ever used, and make -d do what you expect
it to from all other daemons.

It was a nice idea though.



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trigger atexit(3) processing.

Fixes #632



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and bugs right now.




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Found by:	luc/tom28



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