test: enable sparse-revlog for test-clone-uncompressed.t
We are about to enable sparse-revlog globally. To help with reviewing the
tests change, we isolate them in individual changesets.
Differential Revision: https://phab.mercurial-scm.org/D5317
Mercurial's documentation is kept in reStructuredText format, which is
a simple plain text format that's easy to read and edit:
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It's also convertible to a variety of other formats including standard
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Use the Makefile in this directory to generate the man and HTML pages.