regress: Ensure to detect bash correctly in scripts/regress-utils.sh

diff --git a/regress/scripts/regress-utils.sh b/regress/scripts/regress-utils.sh
index 8369565a2551ad06718e211e6eb13901876ff74a..882b2075d370e05f5100b0afe893f6db5f581777 100755 (executable)
--- a/regress/scripts/regress-utils.sh
+++ b/regress/scripts/regress-utils.sh
@@ -17,7 +17,7 @@
 #
 
  # now check if we are running under a proper shell
-if test "x/$(basename $0)" != "x/bash"
+if test "x/$(basename $SHELL)" != "x/bash"
 then
    echo "Regression script must use BASH for this utilities!"
    exit 1