Doesn't work for non-standard wp-content directory/when WP_CONTENT_DIR is used

[kkmuffme]

https://github.com/WordPress/plugin-check/blob/trunk/cli.php#L51 (and other lines below)

has wp-content/ hardcoded, which means it doesn't work for cases where WP_CONTENT_DIR is defined with a value different than ABSPATH . 'wp-content'

[swissspidy]

Good catch! Feel free to submit a PR :)