Rename sunos to solaris

src/libstd/sys/unix/process.rs

@@ -93,7 +93,7 @@ fn os2c(s: &OsStr) -> CString {
 pub struct ExitStatus(c_int);
 
 #[cfg(any(target_os = "linux", target_os = "android",
-          target_os = "nacl", target_os = "sunos"))]
+          target_os = "nacl", target_os = "solaris"))]
 mod status_imp {
     pub fn WIFEXITED(status: i32) -> bool { (status & 0xff) == 0 }
     pub fn WEXITSTATUS(status: i32) -> i32 { (status >> 8) & 0xff }