[MacPorts] #17048: libsigsegv version update to 2.6

[MacPorts]

#17048: libsigsegv version update to 2.6
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 Reporter:  blb at macports.org  |       Owner:  sean at rees.us
     Type:  enhancement       |      Status:  new         
 Priority:  Normal            |   Milestone:  Port Updates
Component:  ports             |     Version:  1.6.0       
 Keywords:                    |        Port:  libsigsegv  
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 Attached is a diff to devel/libsigsegv to update it to version 2.6.  Also,
 files/ can be removed since the patches were removed from the Portfile.

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Ticket URL: <http://trac.macports.org/ticket/17048>
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