[REBOL] read-thru check refinement

From: carl:cybercraft at: 22-Jul-2001 15:11

'read-thru has a 'check refinement for updating a file only if its
date or size has changed.  This requires an extra value of either a
block, logic or none.  What should the block contain?  As trying
read-thru/check using true, false or none makes no difference - the
file is never updated regardless.

--
Carl Read
[carl--cybercraft--co--nz]

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