9704 move socket functions to libc

@@ -27,12 +27,15 @@
  * Use is subject to license terms.
  */
 
         .file   "_so_recv.s"
 
-/* C library -- _so_recv                                                */
-/* int __so_recv(int sock, void *buffer, size_t len, int flags)         */
+/*
+ * C library -- __so_recv
+ *
+ * ssize_t __so_recv(int, void *, size_t, int)
+ */
 
 #include "SYS.h"
 
         SYSCALL2_RESTART_RVAL1(__so_recv,recv)
         RET