Fix argument order for copy* functions

Author: fhartwig

src/lib.rs

@@ -94,7 +94,7 @@ impl NixPath for [u8] {
         match self.position_elem(&0) {
             Some(_) => Err(Error::InvalidPath),
             None => {
-                bytes::copy_memory(&mut buf, self);
+                bytes::copy_memory(self, &mut buf);
                 Ok(f(<OsStr as OsStrExt>::from_bytes(&buf[..self.len()])))
             }
         }

src/sys/socket/addr.rs

@@ -349,8 +349,8 @@ impl UnixAddr {
                 }
 
                 ptr::copy(
-                    ret.sun_path.as_mut_ptr(),
                     bytes.as_ptr() as *const i8,
+                    ret.sun_path.as_mut_ptr(),
                     bytes.len());
 
                 Ok(UnixAddr(ret))