Merge pull request #13 from spk121/12-feature-request-please-add-curl…

…_easy_getinfo

12 feature request please add curl easy getinfo

Prep 0.9 version

* README: grammar
* NEWS: update news
* test/setopt.scm: whitespace
* configure.ac: bump rev to 0.9

remove obsolete setopt.scm.in test script

add the hardening warnings to the build action

* github/workflows/ubuntu-bionic-guile-2.2.yml
* github/workflows/ubuntu-focal-guile-3.0.yml

NEWS

Bump to 0.4