bump: ash variable substitution, quote slash

[Ron Yorston]

Bastian Bittorf wrote:
>* Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn at axis.com> [23.09.2015 10:44]:
>> > so basically this does not work (no matter how I escape)
>> > var='a/c'; echo ${var////b}
>>                        ^^^^
>> That looks like a bashism (not portable).  Is it this:
>> 
>> 	${parameter/pattern/string}
>> 
>> you're trying to use?  In that case, this:
>> 
>> 	v=a/c && echo ${v/\//b}
>> 
>> should work for you.
>
>no, as I wrote 'no matter how I escape' - it does not work.
>(busybox git HEAD)

Works for me in Busybox master.  The example above, with the slash
escaped by a backslash, has worked since my commit 417622c
(ash: fix breakage of ${v/pat/str}).  And there's a test for it
(var-pattern-replacement-in-parameter-expansion-5.tests).

Ron