5365723 Fix for upstream bug 4356, config parsing issue

Authored and Committed by pghmcfc 5 years ago
    Fix for upstream bug 4356, config parsing issue
    
    Fix infinite loop possible in mod_sftp's set_sftphostkey() function, by
    actually iterating properly for the next configuration record
    http://bugs.proftpd.org/show_bug.cgi?id=4356
    https://github.com/proftpd/proftpd/pull/736
    
        
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