[PATCH] fix last corner case in strrstr.c

[Bernhard Fischer]

On Tue, Jun 17, 2008 at 09:38:38PM +0200, Tito wrote:
>Hi,
>current implementation fails to be coherent with real strstr()
>on the last test case:
>./test
>'baaabaaab'  vs. 'aaa'       : PASSED
>'baaabaaaab' vs. 'aaa'       : PASSED
>'baaabaab'   vs. 'aaa'       : PASSED
>'aaa'        vs. 'aaa'       : PASSED
>'aaa'        vs. 'a'         : PASSED
>'aaa'        vs. 'bbb'       : PASSED
>'a'          vs. 'aaa'       : PASSED
>'aaa'        vs. ''          : PASSED
>''           vs. 'aaa'       : PASSED
>''           vs. ''          : FAILED
>
>this patch fixes this with no size increase:
>
> ./test
>'baaabaaab'  vs. 'aaa'       : PASSED
>'baaabaaaab' vs. 'aaa'       : PASSED
>'baaabaab'   vs. 'aaa'       : PASSED
>'aaa'        vs. 'aaa'       : PASSED
>'aaa'        vs. 'a'         : PASSED
>'aaa'        vs. 'bbb'       : PASSED
>'a'          vs. 'aaa'       : PASSED
>'aaa'        vs. ''          : PASSED
>''           vs. 'aaa'       : PASSED
>''           vs. ''          : PASSED
>
>./scripts/bloat-o-meter busybox_old busybox_unstripped
>function                                             old     new   delta
>------------------------------------------------------------------------------
>(add/remove: 0/0 grow/shrink: 0/0 up/down: 0/0)                 Total: 0 bytes

Thanks, applied.