translation fix

In Japan, permanent marker is referred to as "oil-based". I think this
translation mistake comes from not knowing that and just going with the
most obvious dictionary definition.

Update/onik_003.txt

@@ -626,7 +626,7 @@ void main()
 
 	PlaySE(3, "s19/02/990200176", 256, 64);
 	OutputLine(NULL, "…油性じゃないよね？",
-		   NULL, " ...It won't be oil-based paint, right?", Line_WaitForInput);
+		   NULL, " ...It won't be a permanent marker, right?", Line_WaitForInput);
 	PlaySE(3, "s19/02/990200177", 256, 64);
 	OutputLine(NULL, "　油性じゃないよね…？」",
 		   NULL, " ...Right...?\"", Line_WaitForInput);