[Pidgin] #3525: pidgin gtkconv saveicon_writefile_cb fix

[Pidgin]

#3525: pidgin gtkconv saveicon_writefile_cb fix
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 Reporter:  eperez        |       Type:  patch
   Status:  new           |   Priority:  minor
Component:  pidgin (gtk)  |    Version:  2.2.1
 Keywords:  gtkconv       |    Pending:  0    
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 This patch uses the new purple_util_write_data_to_file_absolute() to write
 icons atomically to prevent any problems and make code easier to read.

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Ticket URL: <http://developer.pidgin.im/ticket/3525>
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