xdiff: resolve signed unsigned comparison warning Since the value won't be changed inside the code (because context lines feature was removed by D2705), let's just remove the variable and inline the 0 value. The code might be potentially further simplified. But I'd like to make sure correctness is easily verifiable in this patch. Differential Revision: https://phab.mercurial-scm.org/D2766

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# name space package to host third party extensions

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from __future__ import absolute_import

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import pkgutil

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__path__ = pkgutil.extend_path(__path__, __name__)