Fix quickerNES string error handling

Author: CasualPokePlayer

src/BizHawk.Emulation.Cores/Consoles/Nintendo/QuickNES/LibQuickNES.cs

@@ -227,11 +227,11 @@ public static void ThrowStringError(IntPtr p)
 		{
 			if (p == IntPtr.Zero)
 				return;
-			string s = Marshal.PtrToStringAnsi(p);
-			if (s == "Unsupported mapper"
-				|| s == "Not an iNES file" // Not worth making a new exception for the iNES error, they ultimately are the same problem
-				|| s == " truncated file" // This is a garbage rom not worth anyone's time but at least NesHawk handles these better, and these occur before the core has a chance to assess an unsupported mapper
-				)
+			var s = Marshal.PtrToStringAnsi(p);
+			if (s is "Unsupported mapper"
+				or "Not an iNES file" // Not worth making a new exception for the iNES error, they ultimately are the same problem
+				or "Malformed iNES file" // This is a garbage rom not worth anyone's time but at least NesHawk handles these better, and these occur before the core has a chance to assess an unsupported mapper
+				or "Unsupported ROM size") // Similar to above
 			{
 				throw new Common.UnsupportedGameException(CoreNames.QuickNes + " unsupported mapper");
 			}