[Bug 219242] math/lp_solve: Update to version 5.5.2.5

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219242

            Bug ID: 219242
           Summary: math/lp_solve: Update to version 5.5.2.5
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: freebsd-ports-bugs at FreeBSD.org
          Reporter: pfg at FreeBSD.org
                CC: mayo at oyam.ca
             Flags: maintainer-feedback?(mayo at oyam.ca)
                CC: mayo at oyam.ca

Created attachment 182551
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=182551&action=edit
Update lp_solve port

Main changes:

15/09/16 version 5.5.2.4
- When using set_lowbo and set_upbo to set bounds on a variable and the new
low/up bounds are very close to each other
  but not equal then they are set equal for numerical stability.

18/09/16 version 5.5.2.5
- When all variables in the model are integer, but not all binary (in fact
difference between upper and lower bound 1),
  then it could happen that not the most optimal integer solution was found.
- Updated/added scaling options to the lp_solve command line program

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