Auto merge of #2879 - semarie:openbsd-KERN_NSELCOLL, r=JohnTitor

openbsd: ignore ci error about unexistent KERN_NSELCOLL constant

This sysctl(2) constant has been removed.

openbsd/src@9bf42e3

Author: bors

libc-test/build.rs

@@ -491,6 +491,8 @@ fn test_openbsd(target: &str) {
         match name {
             // Removed in OpenBSD 6.0
             "KERN_USERMOUNT" | "KERN_ARND" => true,
+            // Removed in OpenBSD 7.2
+            "KERN_NSELCOLL" => true,
             // Good chance it's going to be wrong depending on the host release
             "KERN_MAXID" | "NET_RT_MAXID" => true,
             "EV_SYSFLAGS" => true,