Log Message:
p5-Net-SFTP-Foreign: update to 1.91.

1.91  Jun 24, 2020
	- ls was not handling the queue size correctly in some
	  cases.
	- Some file types were being incorrectly identified (bug
          report and patch by balakine, #gh16).
	- Some documentation typos corrected (reported by Felix
          Ostmann, #gh15).