It turns out that 'echo -e' isn't portable; it doesn't work in the dash
builtin echo and Ubuntu users are complaining.
I can't even get octal (specified by POSIX) to work consistently because
those variants of 'echo' which *do* support -e don't seem to interpret
octalwithout it.
I could switch to /bin/echo but using -e with that isn't actually
portable *either* even though it works today.
For now just stick with bash, and use its builtin. We may end up using
something else entirely; perhaps perl.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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