[MacPorts] #71168: bfs: typo in man page

[MacPorts]

#71168: bfs: typo in man page
----------------------+--------------------
 Reporter:  kwolcott  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:            |       Port:  bfs
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 ...
       -regextype TYPE
               Use TYPE-flavored regular expressions.  The possible types
 are

               posix-basic
                      POSIX basic regular expressions (the default).

               posix-extended
                      POSIX extended resular expressions.
 ...

 I'm fairly certain "regular" was intended rather than "resular"

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Ticket URL: <https://trac.macports.org/ticket/71168>
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