Properly use SHA1_Final() instead of SHA_Final().

In this case it doesn't really matter, as long as we turn a TTY name
into a set of shuffled bytes. Still, for correctness we should use the
proper function.

MFC after:	2 weeks

lib/libulog/ulog_login.c

@@ -55,7 +55,7 @@ ulog_fill(struct utmpx *utx, const char *line)
 	SHA1_Init(&c);
 	SHA1_Update(&c, "libulog", 7);
 	SHA1_Update(&c, utx->ut_line, sizeof utx->ut_line);
-	SHA_Final(id, &c);
+	SHA1_Final(id, &c);
 
 	memcpy(utx->ut_id, id, MIN(sizeof utx->ut_id, sizeof id));
 }