1. functions
2
3injectfrom() { injectlines "${1}From somebody" "Subject: test1" "To: nowhere"; }
4
5for lead in '' '>'
6do
7    echo "Checking that inject ignores a leading \"${lead}From \" line"
8    injectfrom "$lead" | egrep -qv '^>?From '
9    injectfrom "$lead" | head -n 1 | grep -q '^Subject:'
10done
11