[MacPorts] #42635: Update libyaml to 0.1.5

[MacPorts]

#42635: Update libyaml to 0.1.5
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 Reporter:  sean@…    |      Owner:  macports-tickets@…
     Type:  update    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.2.1
 Keywords:  haspatch  |       Port:  libyal=ml
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 LibYAML updated to 0.1.5. In particular, fixes
 [http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-6393
 CVE-2013-6393].

 Patch attached

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Ticket URL: <https://trac.macports.org/ticket/42635>
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