[BusyBox] [patch] hex constants in ash arithmetic

[Dick Streefland]

The following micro patch adds support for hex constants in ash
arithmetic expressions, just like bash. You can use this to convert
hex values that are used in various /proc files to decimal. Example:

$ hex=100
$ echo $((0x$hex))
256

-- 
Dick Streefland                    ////               De Bilt
dick.streefland at xs4all.nl         (@ @)       The Netherlands
------------------------------oOO--(_)--OOo------------------

--- busybox-0.60.3/libbb/arith.c.orig	Sat Oct 27 01:08:06 2001
+++ busybox-0.60.3/libbb/arith.c	Sat May  4 23:27:08 2002
@@ -157,7 +157,7 @@
 		if (arithval == ' ' || arithval == '\n' || arithval == '\t')
 			goto prologue;
 		if ((unsigned)arithval-'0' <= 9) /* isdigit */ {
-			*numstackptr++ = strtol(expr, (char **) &expr, 10);
+			*numstackptr++ = strtol(expr, (char **) &expr, 0);
 			lasttok = TOK_NUM;
 			continue;
 		} if (arithval == '(') {