K 10
svn:author
V 4
rene
K 8
svn:date
V 27
2019-03-05T22:54:34.135764Z
K 7
svn:log
V 453
rmport: fix and speed up the find_expired() function.

find_expired() is used with -F (report on all expired ports using the
format "date category/port: reason") and -a (remove all expired ports).

Some speedups:
- only calculate the deprecation reason for -F
- use nested loops instead of nested recursion for traversing all ports.
  The nested recursion would also stop after finding the first port.

Approved by:	maintainer (crees) (implicit, fixit)

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