File abiword-3.0.2-fix-build-with-gcc13.patch of Package mingw64-abiword

--- abiword-3.0.2/src/af/xap/xp/xap_Dialog.cpp.orig	2023-11-23 08:46:23.927675318 +0100
+++ abiword-3.0.2/src/af/xap/xp/xap_Dialog.cpp	2023-11-23 08:46:40.011613465 +0100
@@ -267,7 +267,7 @@
 // This function constructs and returns the window name of a modeless dialog by
 // concatenating the active frame with the dialog name
 
-	*pWindowName = (char) NULL;
+	*pWindowName = '\0';
 	UT_UTF8String wn = UT_UTF8String(pDialogName);
 
 	XAP_Frame* pFrame = getActiveFrame();