Use 'hg ci -d "1000000 0"' in tests to circumvent problem with leading zero.
Some systems show "Thu Jan 01" instead of "Thu Jan 1", which breaks tests.
Using "1000000" yields "Mon Jan 12 13:46:40 1970", which looks the same on
all systems.
1:016807e6fdaf
0:eb43f19ff115
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eb43f19ff115
eb43f19ff115+
eb43f19ff115
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merging file1
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