Log Message:
ansiweather: update to 1.18.0.

AnsiWeather 1.18.0 (2021-09-14)

- Update man page to add the -v option (Thanks Takayuki Hirota)
- Add support for displaying feels like temperature (Thanks Andrew Abdalian)
- Use command -v instead of which (Thanks er0k)
- Add SPDX short license identifier in source file