[Pidgin] #9201: Allow configuring nick completion suffix

[Pidgin]

#9201: Allow configuring nick completion suffix
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 Reporter:  atorkhov      |     Owner:  lschiere
     Type:  defect        |    Status:  new     
Component:  unclassified  |   Version:  2.5.5   
 Keywords:                |  
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 I’d like to have option to configuring nick completion suffix to change it
 from colon to comma.

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Ticket URL: <http://developer.pidgin.im/ticket/9201>
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