osx/linux compatible xargs arguments
diff --git a/kitchen-init.sh b/kitchen-init.sh
index b5737ba..601ea58 100755
--- a/kitchen-init.sh
+++ b/kitchen-init.sh
@@ -12,7 +12,7 @@
export verifier=${verifier:-inspec} # serverspec, pester
export formula=${formula:-$(awk -F: '/^name/{gsub(/[\ \"]/,"");print $2}' metadata.yml)}
-export suites=$(ls tests/pillar|xargs -i{} basename {} .sls)
+export suites=$(ls tests/pillar|xargs -I{} basename {} .sls)
export SOURCE_REPO_URI="https://git.tcpcloud.eu/cookiecutter-templates/cookiecutter-salt-formula/raw/master/%7B%7Bcookiecutter.project_name%7D%7D"