fix regression from set -u commit

diff --git a/err b/err
index 4e5a1da96efc069f45f568338d3caf5d4649e1aa..4a68f0a00981b157649e1ebf93b1af3cbac7d7d8 100644 (file)
--- a/err
+++ b/err
@@ -70,7 +70,7 @@ err-catch() {
     echo "${BASH_SOURCE[1]}:${BASH_LINENO[0]}:in \`$BASH_COMMAND' returned $err"
     # err trap does not work within an error trap, the following line:
     err-bash-trace 2; set -e
-    "${_errcatch_cleanup[@]:-}" # note :- is to be compatible with set -u
+    "${_errcatch_cleanup[@]:-:}" # note :-: is to be compatible with set -u
     echo "$0: exiting with code $err"
     exit $err
   }