[MacPorts] #71097: cvs-fast-export: Update to 1.68

[MacPorts]

#71097: cvs-fast-export: Update to 1.68
--------------------------+-----------------------------
 Reporter:  sambthompson  |      Owner:  mojca
     Type:  update        |     Status:  assigned
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.10.2
 Keywords:                |       Port:  cvs-fast-export
--------------------------+-----------------------------
 {{{
 $ port livecheck cvs-fast-export
 cvs-fast-export seems to have been updated (port version: 1.57, new
 version: 1.68)
 }}}

 This would pick up some [https://gitlab.com/esr/cvs-fast-
 export/-/blob/master/NEWS.adoc fixes since 1.57], particularly the helpful
 `-w` option for processing whole CVS repos.

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Ticket URL: <https://trac.macports.org/ticket/71097>
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