use errno.h not sys/errno.h as pointed out by sjhill

libc/inet/rpc/clnt_generic.c

@@ -44,7 +44,6 @@
 #include <string.h>
 #include <rpc/rpc.h>
 #include <sys/socket.h>
-#include <sys/errno.h>
 #include <netdb.h>
 
 #undef get_rpc_createerr

libc/sysdeps/linux/e1/vfork.c

@@ -1,5 +1,5 @@
 #include <sys/types.h>
 #include <sys/syscall.h>
-#include <sys/errno.h>
+#include <errno.h>
 
 _syscall0(pid_t, vfork);