lib/preview: handle unbound parameter

If $BASH_PREVIEW is unset, treat it as blank.
2021-07-25 21:09:51 -07:00 · 2021-07-25 21:09:51 -07:00 · bcd67db4ab
parent 02c13b7921
commit bcd67db4ab
1 changed files with 1 additions and 1 deletions
--- a/lib/preview.bash
+++ b/lib/preview.bash
@ -1,4 +1,4 @@
-if [[ $BASH_PREVIEW ]];
+if [[ "${BASH_PREVIEW:-}" ]];
 then
  unset BASH_PREVIEW #Prevent infinite looping
  echo "