Rollup merge of rust-lang#64393 - Wind-River:master_002_envKey, r=alexcrichton

 declare EnvKey before use to fix build error

r? @alexcrichton

Author: Centril

src/libstd/sys/vxworks/process/mod.rs

@@ -1,5 +1,6 @@
 pub use self::process_common::{Command, ExitStatus, ExitCode, Stdio, StdioPipes};
 pub use self::process_inner::Process;
+pub use crate::ffi::OsString as EnvKey;
 
 mod process_common;
 #[path = "process_vxworks.rs"]

src/libstd/sys/vxworks/process/process_common.rs

@@ -12,8 +12,6 @@ use crate::collections::BTreeMap;
 
 use libc::{c_int, gid_t, uid_t, c_char, EXIT_SUCCESS, EXIT_FAILURE};
 
-pub use crate::ffi::OsString as EnvKey;
-
 ////////////////////////////////////////////////////////////////////////////////
 // Command
 ////////////////////////////////////////////////////////////////////////////////