A 59-year-old man is undergoing laparoscopic sigmoid colectomy for sigmoid colon cancer. During the course of mobilization of the splenic flexure to obtain adequate length for a colorectal anastomosis, a 1.5-cm splenic capsular tear is identified on the anterior aspect of the spleen. After initial 200-mL blood loss, the left upper quadrant is packed for 20 minutes. Upon removal of the packs, minimal oozing is visualized. The patient remains hemodynamically stable. The best next step in management is: