xdiff: fix a hard crash on Windows

Authored by mharbison72.

Description

xdiff: fix a hard crash on Windows

The xdiff case of test-diff-antipatience.t started crashing in the C extension
with 882657a9f768 (with 6a71a5ba666b backported so it compiles). There are a
few more instances of 'long', but this resolves the crashing.

Details

Committed
mharbison72Mar 12 2018, 9:50 PM
Parents
rHG6aeb076b1321: templater: split template functions to new module
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