Merge pull request #22834 from krkk/hi-this-is-my-first-PR-and-heres-my-breaking-change-haha

std.c: Improve the description of getnameinfo() arguments: optional pointers and specialized `flags` type

Author: alexrp

lib/std/c.zig

@@ -9770,11 +9770,11 @@ pub extern "c" fn freeaddrinfo(res: *addrinfo) void;
 pub extern "c" fn getnameinfo(
     noalias addr: *const sockaddr,
     addrlen: socklen_t,
-    noalias host: [*]u8,
+    noalias host: ?[*]u8,
     hostlen: socklen_t,
-    noalias serv: [*]u8,
+    noalias serv: ?[*]u8,
     servlen: socklen_t,
-    flags: u32,
+    flags: NI,
 ) EAI;
 
 pub extern "c" fn gai_strerror(errcode: EAI) [*:0]const u8;