Merge #1536

1536: Lower limits in setrlimit example r=asomers a=rtzoeller

The current values causes the doc test to fail on Fedora 34 for unprivileged users. The values can be lowered without meaningfully changing the example.

Previously the example failed with EPERM.

Co-authored-by: Ryan Zoeller <rtzoeller@rtzoeller.com>

src/sys/resource.rs

@@ -200,8 +200,8 @@ pub fn getrlimit(resource: Resource) -> Result<(Option<rlim_t>, Option<rlim_t>)>
 /// ```
 /// # use nix::sys::resource::{setrlimit, Resource};
 ///
-/// let soft_limit = Some(1024);
-/// let hard_limit = Some(1048576);
+/// let soft_limit = Some(512);
+/// let hard_limit = Some(1024);
 /// setrlimit(Resource::RLIMIT_NOFILE, soft_limit, hard_limit).unwrap();
 /// ```
 ///