Patch bash40-001 does not work under Interix/SUA

[pjodrr]

Hello,

The patch description is:

"
Bash has problems parsing certain constructs inside Posix-style $(...)
command substitutions, mostly with backslash-quoting and reserved word
recognition.    This is an issue because the contents are parsed at
the
time the word containing the command substitution is read.
"

but it does not work under interix, I still get:

bash-4.0$ x=$(echo)
bash: command substitution: line 7: syntax error near unexpected token
`)'
bash: command substitution: line 7: `echo)'
bash-4.0$ echo ${BASH_VERSINFO[@]}
4 0 38 1 release x86_64-unknown-interix6.1
bash-4.0$

with bash 4.1 i get the same behaviour.