fix Gentoo support

bastelfreak · bastelfreak · commit bddf0491d18b · 2018-12-26T00:27:20.000+01:00
The hardcoded package name wasn't available on Gentoo. The tests
correctly discover this, but the Gentoo parts weren't executed for a
long time, because of missing facts in facterdb.
diff --git a/manifests/install.pp b/manifests/install.pp
@@ -96,7 +96,7 @@
       Package <| title == 'virtualenv' |> {
         name     => 'virtualenv',
         provider => 'pip',
-        require  => Package['python-dev']
+        require  => Package[$pythondev],
       }
     }
     'scl': {

Original file line number	Diff line number	Diff line change
`@@ -96,7 +96,7 @@`
`96`	`96`	`Package <\| title == 'virtualenv' \|> {`
`97`	`97`	`name => 'virtualenv',`
`98`	`98`	`provider => 'pip',`
`99`		`- require => Package['python-dev']`
	`99`	`+ require => Package[$pythondev],`
`100`	`100`	`}`
`101`	`101`	`}`
`102`	`102`	`'scl': {`