Automated PR: Cookstyle Changes (#174)

* Cookstyle 7.26.1 Fixes

Issues found and resolved with: test/integration/helpers/serverspec/spec_helper.rb

 - 9:21 convention: Style/FileRead - Use File.read. https://rubystyle.guidefile-read

Signed-off-by: kitchen-porter <board@sous-chefs.org>

* Update CHANGELOG.md

* Use correct path for systemd on OpenSUSE

Signed-off-by: Lance Albertson <lance@osuosl.org>

Co-authored-by: Jason Field <Jason@avon-lea.co.uk>
Co-authored-by: Lance Albertson <lance@osuosl.org>

test/integration/helpers/serverspec/spec_helper.rb

@@ -6,7 +6,7 @@ set :path, '/sbin:/usr/local/sbin:$PATH'
 def family
   fam = 'solaris2'
   return fam unless File.exist? '/etc/release'
-  fam = 'omnios' if File.open('/etc/release').read =~ /^\s*(OmniOS)/
+  fam = 'omnios' if File.read('/etc/release') =~ /^\s*(OmniOS)/
   fam
 end