- find() and contains() dispatch on Editable for the member lookup; for
documents that cannot be edited both branches were the same call
(GCC -Wduplicated-branches)
- json_view.hpp includes <cstdio> for the FILE overload (cpplint)
- the arena check macro of the builder is on one line (cpplint read it
as an if body without braces)
- tests: no nested conditional (also MSVC C4018), no useless cast,
parentheses around mixed operators, raw string literals, += instead
of temporary concatenations, and NOLINT for the fixed seeds and a
find() != npos, as elsewhere in the tests
Signed-off-by: Niels Lohmann <mail@nlohmann.me>