ash: bash-compatible $'...' shouldn't expand in double quotes
Bash doesn't expand its $'...' construct in double quotes:
$ echo "$'a\tb'"
$'a\tb'
Change BusyBox ash to do the same. This also fixes a problem with
here documents where BusyBox ash gave an incorrect result for:
$ cat <<EOF
> '$'
> EOF
'$'
Reported-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash_test/ash-heredoc/heredoc4.right b/shell/ash_test/ash-heredoc/heredoc4.right
new file mode 100644
index 0000000..371b092
--- /dev/null
+++ b/shell/ash_test/ash-heredoc/heredoc4.right
@@ -0,0 +1 @@
+'$'