Jordan Ogas 1666db60d0 charliecloud: add 0.18 (#18200) ... * add 0.18, remove older versions * update url * fix typo		2020-08-20 20:16:34 -05:00
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spack	charliecloud: add 0.18 (#18200)	2020-08-20 20:16:34 -05:00