IABSD.fr/src

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• Author : schwarze
  Date : 2017-07-26 12:10:56
  Hash : 44b0a3c1
  Message : Initialize "old" screen buffer lines before use; otherwise, they would never get NUL-terminated and cause read buffer overruns. This fixes for example segfaults in sftp(1) that could be triggered by typing in an extremely long string (more than one line - the longer, the likelier to crash), then hitting backspace once. Problem reported and patch OK'ed by sthen@.