Minor preprocessor adjustment in ZeroTierSockets.h

include/ZeroTierSockets.h

@@ -17,13 +17,13 @@
  * This defines the external C API for ZeroTier Sockets
  */
 
+#ifndef ZT_SOCKETS_H
+#define ZT_SOCKETS_H
+
 #if !ZTS_NO_STDINT_H
 #include <stdint.h>
 #endif
 
-#ifndef ZT_SOCKETS_H
-#define ZT_SOCKETS_H
-
 #if defined(_MSC_VER)
 	#ifndef ssize_t
 		// TODO: Should be SSIZE_T, would require lwIP patch