Add not that this is probably not 64-bit clean.

Haven't decided if this is worth looking at or not yet.

src/encode/lzh.c

@@ -558,6 +558,7 @@ static short int lzh_decode_position(lzh_t* lzh, uchar *inbuf, long *incnt, long
 
 /* Encoding/Compressing */
 /* Returns length of outbuf */
+/* TODO: Note that inlen usage suggests this is not 64-bit clean */
 long LZHCALL lzh_encode(uchar *inbuf, long inlen, uchar *outbuf)
 {
 	short int  i, c, len, r, s, last_match_length;