Fix Coverity Scan 1486959 Resource leak

src/persist_write_v5.c

@@ -194,6 +194,10 @@ int persist__chunk_message_store_write_v6(FILE *db_fptr, struct P_base_msg *chun
 			}
 
 			write_e(db_fptr, prop_packet->payload, proplen);
+			if(fwrite(prop_packet, 1, proplen, db_fptr) != proplen){
+				SAFE_FREE(prop_packet);
+				goto error;
+			}
 			SAFE_FREE(prop_packet);
 		}
 	}