Fix DEBUG_SEC_LANG

Firmware/Marlin_main.cpp

@@ -1242,9 +1242,9 @@ void setup()
 		printf_P(_n("_SEC_LANG_TABLE checksum = %04x\n"), sum);
 		sum = (sum >> 8) | ((sum & 0xff) << 8); //swap bytes
 		if (sum == header.checksum)
-			puts_P(_n("Checksum OK"), sum);
+			printf_P(_n("Checksum OK\n"), sum);
 		else
-			puts_P(_n("Checksum NG"), sum);
+			printf_P(_n("Checksum NG\n"), sum);
 	}
 	else
 		puts_P(_n("lang_get_header failed!"));

Firmware/language.c

@@ -264,7 +264,7 @@ uint16_t lang_print_sec_lang(FILE* out)
 	printf_P(_n(" _lt_resv0        = 0x%04x\n"), _lt_resv0);
 	printf_P(_n(" _lt_resv1        = 0x%08lx\n"), _lt_resv1);
 	if (_lt_magic != LANG_MAGIC) return 0;
-	puts_P(_n(" strings:\n"));
+	puts_P(_n(" strings:"));
 	uint16_t ui = _SEC_LANG_TABLE; //table pointer
 	for (ui = 0; ui < _lt_count; ui++)
 		fprintf_P(out, _n("  %3d %S\n"), ui, lang_get_sec_lang_str_by_id(ui));