Fixed english main.yml localization file having % as the beginning of one token, changed the way attempt_apply_dnd function checks for the current platform.

Author: Shararamosh

flatc_deserializer_frontend.py

@@ -3,6 +3,7 @@
 """
 # pylint: disable=import-error
 import os
+import sys
 import tkinter.filedialog
 from collections.abc import Callable
 from importlib import import_module
@@ -27,7 +28,7 @@ def attempt_apply_dnd(widget_id: int, dnd_event: Callable):
     :param widget_id: Widget ID.
     :param dnd_event: Callable object for drag-and-drop event.
     """
-    if os.name != "nt":
+    if sys.platform != "win32":
         return
     try:
         mod = import_module("pywinstyles")

localization/en_US/main.yml

@@ -8,7 +8,7 @@ tkinter_binaries_select: Select binary files
 flatc_binary_filetype: Binary Flatbuffers file
 tkinter_output_select: Select destination directory
 files: Files
-unsupported_platform: %s platform is not supported.
+unsupported_platform: "%s platform is not supported."
 executable_not_found: Executable %s not found.
 file_not_found: File %s not found.
 directory_not_found: Directory %s not found.