dollar handling in here document

[Timo Teras]

Hi

Not sure if this is bug or not. But at least bash works different here:

$ busybox sh a.sh 
''

$ bash a.sh 
'$'

$ cat a.sh 
cat <<EOF
'$'
EOF


Found this in gettext autoconfigury test that broke the build when bash
was not installed. I think test itself is broke and should've used
literal here documents (<<'EOF') in the first place. But just wanted to
check if this is bug or not.

Thanks,
Timo