Auto merge of #2809 - AlekseiNikiforovIBM:musl-s390x-support, r=JohnTitor

Musl s390x: add ENOTSUP alias for EOPNOTSUPP

Author: bors

src/unix/linux_like/linux/musl/b64/s390x.rs

@@ -221,6 +221,7 @@ pub const ENOPROTOOPT: ::c_int = 92;
 pub const EPROTONOSUPPORT: ::c_int = 93;
 pub const ESOCKTNOSUPPORT: ::c_int = 94;
 pub const EOPNOTSUPP: ::c_int = 95;
+pub const ENOTSUP: ::c_int = EOPNOTSUPP;
 pub const EPFNOSUPPORT: ::c_int = 96;
 pub const EAFNOSUPPORT: ::c_int = 97;
 pub const ENETDOWN: ::c_int = 100;