Call cleanup() before exit in log_error() instead of calling

sudo_ldap_close() directly.  ldap_conn can now be static to sudo.c

logging.c

@@ -394,10 +394,7 @@ log_error(flags, fmt, va_alist)
 	efree(logline);
 
     if (!ISSET(flags, NO_EXIT)) {
-#ifdef HAVE_LDAP
-	if (ldap_conn != NULL)
-	    sudo_ldap_close(ldap_conn);
-#endif
+	cleanup(0);
 	exit(1);
     }
 }

sudo.c

@@ -150,7 +150,7 @@ char *login_style;
 sigaction_t saved_sa_int, saved_sa_quit, saved_sa_tstp, saved_sa_chld;
 static char *runas_user;
 static char *runas_group;
-void *ldap_conn;
+static void *ldap_conn;
 
 int
 main(argc, argv, envp)

sudo.h

@@ -292,7 +292,6 @@ extern struct passwd *auth_pw, *list_pw;
 
 extern int tgetpass_flags;
 extern uid_t timestamp_uid;
-extern void *ldap_conn;
 #endif
 #ifndef errno
 extern int errno;