supplying a shorten name for index in shellCommand to avoid error

[pprun]

As this:

"errmsg" : "namespace name generated from index name "test.task.$_id_1__class_1_uuid_1_name_1_description_1_status_1_imageName_1_imageWidth_1_imageHeight_1_expiredTime_1_batchUuid_1_requesterId_1_businessId_1_originalImagePath_1_originalSheetImageName_1_qc_1_reviewed_1_qcResult_1_templateName_1_priority_1_createtime_1_createdBy_1" is too long (127 byte max)"