fix: show error stack or message like [email protected]

[stevenjoezhang]

See

hexo-log/lib/log.js

Lines 48 to 52 in 214edf7

	// Error
	if (data.err) {
	const err = data.err.stack || data.err.message;
	if (err) msg += chalk.yellow(err) + '\n';
	}

[coveralls]

Coverage decreased (-1.6%) to 98.387% when pulling d967f11 on dev into 2d03ea3 on master.

[yoshinorin]

Should we release a patch version(v3.1.1), or enough to ship with the next major version(4.0.0)?

[SukkaW]

Should we release a patch version(v3.1.1), or enough to ship with the next major version(4.0.0)?

I'd prefer a minor version since it is related to an existing issue.

[yoshinorin]

Just now I submit PR for release the 3.2.0 #111