[Pidgin] #1344: fix for some build warnings

[Pidgin]

#1344: fix for some build warnings
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  Reporter:  o_sukhodolsky  |       Owner:  rlaager 
      Type:  patch          |      Status:  assigned
  Priority:  minor          |   Milestone:  2.0.2   
 Component:  pidgin (gtk)   |     Version:  2.0.1   
Resolution:                 |    Keywords:          
   Pending:  0              |  
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Comment (by o_sukhodolsky):

 Replying to [comment:47 rlaager at pidgin.im]:
 > (In [d490669094dfedb728db24b519343e169ca782f9]) Rework the Trillian log
 reader code to make it easier to understand.
 > References #1344

 nice improvement :)
 May I also suggest some changes (will attach them shortly).  The diffs are
 rather long but this is only because I've used strstr() to find end of
 file (instead of current iteration).

 also I've added use of strstr() in two more placed instead of cycles,

 And finally, I've moved temp variable our of the cycle which replace all
 links with hrefs, this
 allows to not allocate new GString for every iteration, instead I continue
 with the processing of
 the line and collect "unlinkified string" in temp. (Hope the explanation
 was clear :)

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Ticket URL: <http://developer.pidgin.im/ticket/1344#comment:49>
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