[tor-bugs] #17824 [metrics-lib]: switch on string instead of many if-else with String comparison

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#17824: switch on string instead of many if-else with String comparison
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 Reporter:  iwakeh       |          Owner:  karsten
     Type:  enhancement  |         Status:  needs_review
 Priority:  Low          |      Milestone:
Component:  metrics-lib  |        Version:
 Severity:  Minor        |     Resolution:
 Keywords:               |  Actual Points:
Parent ID:  #17822       |         Points:
  Sponsor:               |
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Comment (by karsten):

 Looks good!  Pushed your patch to my branch, made a few whitespaces fixes,
 and added a change log entry for the three tickets.  I'll run some
 "integration" tests now by running Onionoo/Metrics instances with this
 version and will release this as 1.1.0 probably tomorrow.  Thanks!

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17824#comment:6>
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