Fix build with latest AOSP.

Obviously this isn't pretty and needs to be addressed...
diff --git a/miscutils/time.c b/miscutils/time.c
index 19b0b44..b0852a0 100644
--- a/miscutils/time.c
+++ b/miscutils/time.c
@@ -71,7 +71,7 @@
 
 	/* Ignore signals, but don't ignore the children.  When wait3
 	 * returns the child process, set the time the command finished. */
-	while ((caught = wait3(&resp->waitstatus, 0, &resp->ru)) != pid) {
+	while ((caught = wait4(-1, &resp->waitstatus, 0, &resp->ru)) != pid) {
 		if (caught == -1 && errno != EINTR) {
 			bb_perror_msg("wait");
 			return;