Add description for max-cache-age flag

README.md

@@ -238,7 +238,7 @@ OPTIONS:
                                                limiting [env: GITHUB_TOKEN]
     -h, --headers <headers>...                 Custom request headers
         --include <include>...                 URLs to check (supports regex). Has preference over all excludes
-        --max-cache-age <max-cache-age>         [default: 1d]
+        --max-cache-age <max-cache-age>        Discard all cached requests older than this duration [default: 1d]
         --max-concurrency <max-concurrency>    Maximum number of concurrent network requests [default: 128]
     -m, --max-redirects <max-redirects>        Maximum number of allowed redirects [default: 5]
         --max-retries <max-retries>            Maximum number of retries per request [default: 3]

lychee-bin/src/options.rs

@@ -151,6 +151,7 @@ pub(crate) struct Config {
     #[serde(default)]
     pub(crate) cache: bool,
 
+    /// Discard all cached requests older than this duration
     #[structopt(
         long,
         parse(try_from_str = humantime::parse_duration),