The current output of this script is:
root@master:/etc/munin/plugins# ./pg_transactions
\ncommits.value xxxx\nrollbacks.value xxxx
By removing the first `\n` and by adding an `E` before the second `\n` the output is:
root@master:/etc/munin/plugins# ./pg_transactions
commits.value xxxx +
rollbacks.value xxxx
And lastly by adding the `--no-align` attribute you get the correct output:
root@master:/etc/munin/plugins# ./pg_transactions
commits.value xxxx
rollbacks.value xxxx