[MacPorts] #18716: UPDATE: google-sparsehash 1.4

[MacPorts]

#18716: UPDATE: google-sparsehash 1.4
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 Reporter:  kolov.info@…       |       Owner:  macports-tickets@…                   
     Type:  enhancement        |      Status:  new                                  
 Priority:  Normal             |   Milestone:  Port Updates                         
Component:  ports              |     Version:  1.7.0                                
 Keywords:                     |        Port:  google-sparsehash                    
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 Google has updated it's sparsehash implementation on 28th Jan with the
 following changes:
   * Allow hashtables to be <32 buckets
   * Fix initial-sizing bug: was sizing tables too small
   * Add asserts that clients don't abuse deleted/empty key
   * Improve determination of 32/64 bit for C code

 It would be nice to update MacPorts' version, as it's currently owned by
 nomaintainer.

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Ticket URL: <http://trac.macports.org/ticket/18716>
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