Consistent style in defs.h

defs.h

@@ -161,7 +161,7 @@ int             allocuvm(pde_t*, uint, uint);
 int             deallocuvm(pde_t*, uint, uint);
 void            freevm(pde_t*);
 void            inituvm(pde_t*, char*, uint);
-int             loaduvm(pde_t*, char*, struct inode *ip, uint, uint);
+int             loaduvm(pde_t*, char*, struct inode *, uint, uint);
 pde_t*          copyuvm(pde_t*,uint);
 void            switchuvm(struct proc*);
 void            switchkvm();