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-rwxr-xr-xextensions/tar.check2
1 files changed, 1 insertions, 1 deletions
diff --git a/extensions/tar.check b/extensions/tar.check
index f2304d46..ca5747fd 100755
--- a/extensions/tar.check
+++ b/extensions/tar.check
@@ -17,7 +17,7 @@
set -eu
-if [ "$UPGRADE" == "yes" ]; then
+if [ "$UPGRADE" = "yes" ]; then
echo >&2 "ERROR: Cannot upgrade a tar file deployment."
exit 1
fi