store: don't create dirs ending in period or space for hashed paths (
issue1417)
Windows won't create directories with names ending in period or space, so
we replace the last period/space character in truncated directory names of
hashed paths with some other character (underbar).
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1 files updated, 0 files merged, 0 files removed, 0 files unresolved
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1 files, 1 changesets, 1 total revisions