Matt Harbison <matt_harbison@yahoo.com> [Fri, 09 Mar 2018 21:42:33 -0500] rev 36915
xdiff: silence a 32-bit shift warning on Windows
It's probably harmless, but:
warning C4334: '<<' : result of 32-bit shift implicitly converted to 64 bits
(was 64-bit shift intended?)
Adding a 'ULL' suffix to 1 also works, but I doubt that's portable.