Add comment/info regarding sshcallback buffer usage
Add comment/info regarding sshcallback buffer usage

shaon/eutester,tbeckham/eutester,nagyistoce/eutester,shaon/eutester,tbeckham/eutester,nephomaniac/nephoria,nagyistoce/eutester,sjones4/eutester,nephomaniac/eutester,tbeckham/eutester,shaon/eutester,shaon/eutester,sjones4/eutester,nephomaniac/eutester,nephomaniac/eutester,tbeckham/eutester,nephomaniac/nephoria,nagyistoce/eutester,sjones4/eutester,sjones4/eutester,nagyistoce/eutester