Add Errno::EOPNOTSUPP to FreeBSD, where it is missing

Author: asomers

CHANGELOG.md

@@ -49,6 +49,8 @@ This project adheres to [Semantic Versioning](https://semver.org/).
   (#[1395](https://github.com/nix-rust/nix/pull/1395))
 - Fix spurious errors using `sendmmsg` with multiple cmsgs
   (#[1414](https://github.com/nix-rust/nix/pull/1414))
+- Added `Errno::EOPNOTSUPP` to FreeBSD, where it was missing.
+  (#[1452](https://github.com/nix-rust/nix/pull/1452))
 
 ### Removed
 

src/errno.rs

@@ -1334,6 +1334,7 @@ mod consts {
         pub const ELAST: Errno       = Errno::EOWNERDEAD;
         pub const EWOULDBLOCK: Errno = Errno::EAGAIN;
         pub const EDEADLOCK:   Errno = Errno::EDEADLK;
+        pub const EOPNOTSUPP:  Errno = Errno::ENOTSUP;
     }
 
     pub fn from_i32(e: i32) -> Errno {