[MacPorts] #66510: Uninstall warning: 'continue' ignores 'N'

[MacPorts]

#66510: Uninstall warning: 'continue' ignores 'N'
--------------------+--------------------
 Reporter:  esbugz  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  base    |    Version:  2.8.0
 Keywords:          |       Port:
--------------------+--------------------
 I'd assume that passing `N` or `n` or hitting enter (since 'N' implies
 it's the default) would abort uninstallation, but instead all of these
 result in the warning being ignored

 {{{
 $sudo port uninstall libunistring brotli
 Note: It is not recommended to uninstall/deactivate a port that has
 dependents as it breaks the dependents.
 The following ports will break:
  libidn2 @2.3.4_0
  libpsl @0.21.1-20220513_1
 Continue? [y/N]: N
 --->  Cleaning libunistring
 --->  Deactivating brotli @1.0.9_2
 --->  Cleaning brotli
 --->  Uninstalling brotli @1.0.9_2
 --->  Cleaning brotli
 }}}

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Ticket URL: <https://trac.macports.org/ticket/66510>
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