[BusyBox] Patch for HUSH conditional bug

[Wolfgang Denk]

He,

there is a bug in HUSH's handling of "if" / "elif" commands:

	$  if true
	> then 
	> echo 1
	> elif
	> true
	> then
	> echo 2
	> elif
	> true
	> then
	> echo 3
	> else
	> echo 4
	> fi
	1
	2
	3
	$ 

The same bug exists in all versions of HUSH from BB v0.60.x up to and
including v1.00-pre9. The attached patch fixes this:

	$ if true
	> then 
	> echo 1
	> elif
	> true
	> then
	> echo 2
	> elif
	> true
	> then
	> echo 3
	> else
	> echo 4
	> fi
	1
	$ 



Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
The Wright Bothers weren't the first to fly. They were just the first
not to crash.

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