[Pidgin] #14297: purple_parse_oncoming() passes NULL pointer to printf()

[Pidgin]

#14297: purple_parse_oncoming() passes NULL pointer to printf()
-------------------+--------------------------------------------------------
 Reporter:  clh    |        Owner:  MarkDoliner
     Type:  patch  |       Status:  closed     
Milestone:  2.8.1  |    Component:  AIM        
  Version:  2.8.0  |   Resolution:  fixed      
 Keywords:         |  
-------------------+--------------------------------------------------------

Comment(by markdoliner at pidgin.im):

 (In [7b9efa594d3a94f77d00a96bbeda2a71a48e8616]):[[BR]]
 applied changes from 00c6d11a264a02d1aaa23feb52eab5ca46e655c8
              through d4ad4dcf4f618793c9201ace11269bac63645d69

 Original commit message:
 oscar: Avoid a few printf("%s", NULL)s

 Thanks to clh and dustin.
 Fixes #14295, #14297.

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Ticket URL: <http://developer.pidgin.im/ticket/14297#comment:7>
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