allow run_tests.sh to report why it failed

the set -e was suppressing all the echo information about why
run_tests.sh was failing, which makes it quite hard to figure out
what is going on.

Change-Id: Ie210ee5b5e9ff0028a89da520580db7cd1d9f03a

diff --git a/run_tests.sh b/run_tests.sh
index 74a25312fdd838ef65b48b36ae4863d6d102c4db..03759ab6265626b3280060bf0c76a62ce19f5d82 100755 (executable)
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -eu
+set -u
 
 function usage {
   echo "Usage: $0 [OPTION]..."