Do not show CRC if it is 0xffffffff

tsfuncs_sections.c

 				t->section_number,
 				t->last_section_number);
 	}
-	if (t->CRC)
+	if (t->CRC && t->CRC != 0xffffffff)
 		ts_LOGf("    - CRC                : 0x%08x\n", t->CRC);
 }