ignore unsupported inherit_errexit

I have a really ancient machine with an even more ancient version of
bash that doesn't support inherit_errexit. Ignore for now, put it back
later.

1 files changed, 2 insertions, 1 deletions

diff --git a/update.sh b/update.sh
index 3dfc513..597070f 100755
--- a/update.sh
+++ b/update.sh
@@ -6,7 +6,8 @@
 # permission for everybody except myself for every file in this repository.
 
 set -o errexit -o nounset -o pipefail
-shopt -s inherit_errexit lastpipe
+shopt -s inherit_errexit 2> /dev/null || true
+shopt -s lastpipe
 
 script_dir="$( dirname -- "${BASH_SOURCE[0]}" )"
 script_dir="$( cd -- "$script_dir" && pwd )"