This commit changes the 2.x expression in the Modulefile which while
supported in the PMT, is not supported in librarian-puppet.
project_page 'https://github.com/puppetlabs/puppetlabs-apt'
## Add dependencies, if any:
-dependency 'puppetlabs/stdlib', '2.x'
+#dependency 'puppetlabs/stdlib', '2.x'
+# The dependency should be written as above but librarian-puppet
+# does not support the expression as the PMT does.
+dependency 'puppetlabs/stdlib', '>= 2.2.1'