[inst/http] Reorganize instrumentation
[inst/http] Reorganize instrumentation

Rewrite one-liner, and add logging call closer to the generation of the
information it's reporting.

boyang-li/oboe-ruby,tlunter/oboe-ruby,appneta/ruby-traceview,boyang-li/oboe-ruby,appneta/ruby-traceview,tlunter/oboe-ruby,tlunter/oboe-ruby,appneta/ruby-traceview,boyang-li/oboe-ruby,boyang-li/oboe-ruby,tlunter/oboe-ruby,appneta/ruby-traceview