Auto merge of #1444 - Gymmasssorla:gymmasssorla, r=gnzlbg

Add IP_RECVERR (unix/linux_like/mod.rs)

src/unix/linux_like/mod.rs

@@ -805,6 +805,7 @@ pub const IP_TTL: ::c_int = 2;
 pub const IP_HDRINCL: ::c_int = 3;
 pub const IP_PKTINFO: ::c_int = 8;
 pub const IP_RECVTOS: ::c_int = 13;
+pub const IP_RECVERR: ::c_int = 11;
 pub const IP_ADD_MEMBERSHIP: ::c_int = 35;
 pub const IP_DROP_MEMBERSHIP: ::c_int = 36;
 pub const IP_TRANSPARENT: ::c_int = 19;