"here document" bug in 1.13.0

[Aras Vaichas]

Hi,

I just upgraded from 1.12.0 to 1.13.0 and noticed that many of my shell
scripts seg faulted. I traced the problem to "here documents" inside
nested functions.

Here is an test example:

--- SNIP ---
#!/bin/sh
function1() {
    echo f1

    function2() {
        echo f2
        cat << EOF
        This causes segfault
EOF
}

    function2
}

function1

--- UNSNIP ---

# ./test
f1
Segmentation fault


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