Robert P. Day removed 8 gazillion occurrences of "extern" on function

definitions.  (That should only be on prototypes.)

coreutils/false.c

@@ -13,7 +13,7 @@
 #include <stdlib.h>
 #include "busybox.h"
 
-extern int false_main(int ATTRIBUTE_UNUSED argc, char ATTRIBUTE_UNUSED **argv)
+int false_main(int ATTRIBUTE_UNUSED argc, char ATTRIBUTE_UNUSED **argv)
 {
 	return EXIT_FAILURE;
 }