* 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.

lib/prototypes.h

@@ -99,7 +99,13 @@ extern char **dup_list (char *const *);
 extern int is_on_list (char *const *, const char *);
 extern char **comma_to_list (const char *);
 
-/* login.c */
+/* log.c */
+extern void dolastlog (struct lastlog *ll,
+                       const struct passwd *pw,
+                       const char *line,
+                       const char *host);
+
+/* loginprompt.c */
 extern void login_prompt (const char *, char *, int);
 
 /* mail.c */