* lib/prototypes.h: Add the dolastlog() prototype.

* lib/prototypes.h: Typo: login.c -> loginprompt.c
* src/login.c: Remove declaration of dolastlog().
* libmisc/log.c: dolastlog() should not have been changed to static.
  Include prototypes.h instead.

src/login.c

@@ -112,10 +112,6 @@ static int timeout;
 
 extern char **newenvp;
 extern size_t newenvc;
-
-extern void dolastlog (struct lastlog *, const struct passwd *,
-		       const char *, const char *);
-
 extern char **environ;
 
 #ifndef	ALARM