upstream: Replace fatal with exit in the case that we do not have

$SUDO set. Prevents test failures when neither sudo nor doas are configured.

OpenBSD-Regress-ID: 6a0464decc4f8ac7d6eded556a032b0fc521bc7b
diff --git a/regress/agent-getpeereid.sh b/regress/agent-getpeereid.sh
index 037a509..d19c77f 100644
--- a/regress/agent-getpeereid.sh
+++ b/regress/agent-getpeereid.sh
@@ -1,4 +1,4 @@
-#	$OpenBSD: agent-getpeereid.sh,v 1.9 2017/09/13 14:58:26 bluhm Exp $
+#	$OpenBSD: agent-getpeereid.sh,v 1.10 2018/02/09 03:40:22 dtucker Exp $
 #	Placed in the Public Domain.
 
 tid="disallow agent attach from other uid"