testrunner: fix updating of .testtimes file We attempt to write the 5 most recent test timings to a file called .testtimes, but we read previous results from a file called .testtimes- (including the hyphen), so we ended up no more than a single time per test. Differential Revision: https://phab.mercurial-scm.org/D1961

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  $ hg init

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  $ echo This is file a1 > a

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  $ hg add a

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  $ hg commit -m "commit #0"

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  $ ls

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  a

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  $ echo This is file b1 > b

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  $ hg add b

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  $ hg commit -m "commit #1"

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  $ hg co 0

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  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

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B should disappear

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  $ ls

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  a