fix check_sequence_op script (#22986)

tools/check_sequence_op.sh

@@ -6,7 +6,7 @@ function check_sequnece_op_unitests(){
     check_white_list_file=$1
     function_grep=$2
     INVALID_SEQUENCE_OP_UNITTEST=""
-    all_sequence_ops=`grep '(sequence_' ${PADDLE_ROOT}/build/paddle/fluid/pybind/pybind.h | grep -Ev '^$' | cut -d'(' -f 2 | cut -d')' -f 1`
+    all_sequence_ops=`grep 'OP(sequence_' ${PADDLE_ROOT}/build/paddle/fluid/pybind/pybind.h | grep -Ev '^$' | cut -d'(' -f 2 | cut -d')' -f 1`
     for op_name in ${all_sequence_ops}; do
         in_white_list=`python ${PADDLE_ROOT}/${check_white_list_file} ${op_name}`
         if [ "${in_white_list}" == "True" ]; then