Fix off-by-one buffer overflow when getting LUT 255

src/v_video.h

@@ -45,7 +45,7 @@ typedef struct
 {
 	boolean init;
 	RGBA_t palette[256];
-	UINT16 table[0xFFFF];
+	UINT16 table[0x10000];
 } colorlookup_t;
 
 void InitColorLUT(colorlookup_t *lut, RGBA_t *palette, boolean makecolors);