[MacPorts] #40319: Fix MacPorts user-agent to conform to RFC 2616

[MacPorts]

#40319: Fix MacPorts user-agent to conform to RFC 2616
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  Reporter:  ryandesign  |      Owner:  macports-tickets@…
      Type:  defect      |     Status:  closed
  Priority:  Normal      |  Milestone:  MacPorts 2.3.0
 Component:  base        |    Version:  2.2.0
Resolution:  fixed       |   Keywords:
      Port:              |
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Comment (by Xavier Hsinyuan <me@…>):

 In [changeset:"c39ccfb594ae91ae24c6f93510bffac7b28c4979/macports-base"
 c39ccfb594ae91ae24c6f93510bffac7b28c4979/macports-base] (master):
 {{{
 #!ConfigurableCommitTicketReference repository="macports-base"
 revision="c39ccfb594ae91ae24c6f93510bffac7b28c4979"
 Set a user-agent for curl isnewer

 Fix sync warning about checking update failed due to rejected
 connection without a user-agent on some mirrors.

 The user-agent for curl isnewer is conform
 https://trac.macports.org/ticket/40319.

 Closes: https://trac.macports.org/ticket/70973
 }}}

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Ticket URL: <https://trac.macports.org/ticket/40319#comment:4>
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