Add missing open-modes for memory filesystem (fixes #1921) #1922
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Memory filesystem's open() method supports some - but not all - file modes. Specifically it supports "r+b" but not "a+b", "w+b", and "x+b". Add them. (It also doesn't respect read-only/write-only properties; but the fix is more involved and not (yet?) in demand; left as an exercise to the reader...)
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This if fine, I will merge. However, I'm not sure how useful those extra modes are - essentially all remote FSs only allow "w" and "r" and even "a" needs emulating. |
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Resolves #1921