clean up BUGTRAP code in win32/win_main.c to avoid unmatched }

(though that said we don't officially care about the win32 folder files anymore)

src/win32/win_main.c

@@ -643,37 +643,28 @@ int WINAPI WinMain (HINSTANCE hInstance,
                     int       nCmdShow)
 {
 	int Result = -1;
-
-#if 0
-	// Win95 and NT <4 don't have this, so link at runtime.
-	p_IsDebuggerPresent pfnIsDebuggerPresent = (p_IsDebuggerPresent)GetProcAddress(GetModuleHandleA("kernel32.dll"),"IsDebuggerPresent");
-#endif
-
 	UNREFERENCED_PARAMETER(hPrevInstance);
 	UNREFERENCED_PARAMETER(lpCmdLine);
 	UNREFERENCED_PARAMETER(nCmdShow);
 
+	{
 #if 0
+		p_IsDebuggerPresent pfnIsDebuggerPresent = (p_IsDebuggerPresent)GetProcAddress(GetModuleHandleA("kernel32.dll"),"IsDebuggerPresent");
+		if((!pfnIsDebuggerPresent || !pfnIsDebuggerPresent())
 #ifdef BUGTRAP
-	// Try BugTrap first.
-	if((!pfnIsDebuggerPresent || !pfnIsDebuggerPresent()) && InitBugTrap())
-		Result = HandledWinMain(hInstance);
-	else
-	{
+			&& !InitBugTrap()
 #endif
-		// Try Dr MinGW's exception handler.
-		if (!pfnIsDebuggerPresent || !pfnIsDebuggerPresent())
+		)
 #endif
+		{
 			LoadLibraryA("exchndl.dll");
-
+		}
+	}
 #ifndef __MINGW32__
 	prevExceptionFilter = SetUnhandledExceptionFilter(RecordExceptionInfo);
 #endif
-
 	Result = HandledWinMain(hInstance);
 #ifdef BUGTRAP
-	}	// BT failure clause.
-
 	// This is safe even if BT didn't start.
 	ShutdownBugTrap();
 #endif