[Pidgin] #3145: Tiny code duplication fix

[Pidgin]

#3145: Tiny code duplication fix
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 Reporter:  naugrim       |       Type:  patch
   Status:  new           |   Priority:  minor
Component:  pidgin (gtk)  |    Version:  2.2.0
 Keywords:                |    Pending:  0    
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 Replace 2 function calls with a call to a pre-existing macro which is
 identical to the lines save for adding one additional check.

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Ticket URL: <http://developer.pidgin.im/ticket/3145>
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