The client does not show pages from `common` if a platform is specified using `-p`

[acuteenvy]

$ tldr awk
<shows the awk page from common>

$ tldr -p linux awk
`awk` documentation is not available.
If you want to contribute it, feel free to send a pull request to: https://github.com/tldr-pages/tldr

https://github.com/tldr-pages/tldr/blob/dbfc758e1da84b8a3aee3d866d94373fc745013e/CLIENT-SPECIFICATION.md#page-resolution

If a page is not available for the host platform, clients MUST fall back to the special common platform.

relevant issue: tldr-pages/tldr#15382