Changelog
b419d97 Add a new line at the EOF
9e40600 Bump up the module versions
79cd655 Bump up to 0.1.3
fc76e69 Do not support < Go 1.13
8c7e0f2 Make lines optional
21f41ed Remove a trash comment
ebb928c Remove the unused ArgsUsage
d106dbf Separate the env vars to env section
6418d84 Update .travis.yml
a9f4329 Use inline var