[MacPorts] #14894: libtool: update to 2.2

[MacPorts]

#14894: libtool: update to 2.2
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 Reporter:  ryandesign at macports.org  |       Owner:  boeyms at macports.org
     Type:  enhancement              |      Status:  new                
 Priority:  Normal                   |   Milestone:  Port Updates       
Component:  ports                    |     Version:  1.6.0              
 Keywords:                           |  
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 I updated the libtool port from 1.5.24 to 1.5.26 because that fixed a
 couple build issues we were having with ports. But libtool 2.2 is the
 latest stable version. Since this is a major version jump and 2.2 has been
 in development for a long time, I wanted to leave it to the maintainer to
 handle this update.

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Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/14894>
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