cubicweb #5307539 EtagHTTPCacheManager generates a misformatted cache header [validation pending]

It uses semicolons instead of commas between each cache response directive.

e.g it will output Cache-control: must-revalidate ; max-age=120 instead of Cache-control: must-revalidate , max-age=120

See http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.1 and http://tools.ietf.org/html/rfc2616#section-14.9

priorityimportant
typebug
done in3.20.8
load0.250
load left0.000
closed by#b9bb4296133d [http] fix cache-control syntax in EtagHTTPCacheManager
patch[http] fix cache-control syntax in EtagHTTPCacheManager [applied]