check if somebody has forgotton eval "$ia_init"

explain >&3

test.ia-c-s-m make sure option -s and -m are tested

trap rm tmpfiles

tmpfile name contains shellia

https://www.debian.org/doc/manuals/developers-reference/ch05.en.html

add test with colors

Explain ia_dev_dbg in man-page

if there is no ia_add between eval $ia_init and ia this will result in an endless loop
