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-rwxr-xr-xdocs/preview.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/preview.sh b/docs/preview.sh
index 7f52833e..f691aec0 100755
--- a/docs/preview.sh
+++ b/docs/preview.sh
@@ -26,7 +26,7 @@ Linux)
exit 2
esac
-if [[ -n "$DISPLAY" ]]
+if [ -n "$DISPLAY" ]
then
style=html
else