Log Message:
Update tldr to 1.4.1.

v1.4.1 (2020-09-04)

- [fixed] Syntax error in zsh completion file

v1.4.0 (2020-09-03)

- [added] Configurable automatic cache updates
- [added] Improved color detection and support for `--color` argument and
  `NO_COLOR` env variable
- [changed] Make `--list` option comply with official spec
- [changed] Move cache age warning to stderr