Auto merge of #2611 - devnexen:dfbsd_so_acceptfilter, r=Amanieu

dragonflybsd accept_filter_arg support for SO_ACCEPTFILTER.

Author: bors

libc-test/semver/dragonfly.txt

@@ -1189,6 +1189,7 @@ _UTX_LINESIZE
 _UTX_USERSIZE
 __errno_location
 abs
+accept_filter_arg
 accept4
 acct
 aio_cancel

src/unix/bsd/freebsdlike/freebsd/mod.rs

@@ -325,11 +325,6 @@ s! {
         pub sc_groups: [::gid_t; 1],
     }
 
-    pub struct accept_filter_arg {
-        pub af_name: [::c_char; 16],
-        af_arg: [[::c_char; 10]; 24],
-    }
-
     pub struct ptrace_vm_entry {
         pub pve_entry: ::c_int,
         pub pve_timestamp: ::c_int,

src/unix/bsd/freebsdlike/mod.rs

@@ -266,6 +266,11 @@ s! {
         pub time_state: ::c_int,
     }
 
+    pub struct accept_filter_arg {
+        pub af_name: [::c_char; 16],
+        af_arg: [[::c_char; 10]; 24],
+    }
+
     pub struct ptrace_io_desc {
         pub piod_op: ::c_int,
         pub piod_offs: *mut ::c_void,