Fix possible export VAR=VALUE bashism

priv/templates/simplenode.runner

@@ -58,7 +58,8 @@ case "$1" in
             echo "Node is already running!"
             exit 1
         fi
-        export HEART_COMMAND="$RUNNER_BASE_DIR/bin/$SCRIPT start"
+        HEART_COMMAND="$RUNNER_BASE_DIR/bin/$SCRIPT start"
+        export HEART_COMMAND
         mkdir -p $PIPE_DIR
         # Note the trailing slash on $PIPE_DIR/
         $ERTS_PATH/run_erl -daemon $PIPE_DIR/ $RUNNER_LOG_DIR "exec $RUNNER_BASE_DIR/bin/$SCRIPT console" 2>&1