[Pidgin] #4643: Fix compiler warnings with IO

[Pidgin]

#4643: Fix compiler warnings with IO
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  Reporter:  rlaager    |       Owner:  markdoliner
      Type:  patch      |      Status:  closed     
  Priority:  minor      |   Milestone:  2.3.2      
 Component:  libpurple  |     Version:             
Resolution:  fixed      |    Keywords:             
   Pending:  0          |  
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Comment (by markdoliner at pidgin.im):

 (In [84f67d7b25d842d187bc57e4427eb2fa781cdcf2]) More of ticket #1344 from
 o_sukhodolsky, which rlaager has been
 committing pieces of.  This silences an error about ignoring the
 return value from the 'write' system call.  References #1344.
 References #4643.

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Ticket URL: <http://developer.pidgin.im/ticket/4643#comment:3>
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