commit 749e305d3671368a8d08de002f5235298ed1ed53

[Cristian Ionescu-Idbohrn]

+               # need to use printf: different shells have inconsistent
+               # rules re handling of "\n" in their params,
+               # and ${insert} definitely contains "\n"
+               printf "%s\n" "${header}"

Not sure that would work the way you expect it to.  Consider this example:

,----
| #!/bin/dash
|
| set -e
| set -u
| #set -x
|
| insert="foo\n"
|
| printf "1. insert='%s'\n" "$insert"
| printf "2. insert='$insert'\n"
`----

The output of that on my box is:

	1. insert='foo\n'
	2. insert='foo
'

That is, the expected newline after fooin (1), isn't.
And you don't really want to do it like in (2), do you?


Cheers,

-- 
Cristian