Correct error on the fact name (is_pve_kernel).

lib/facter/is_pve_kernel.rb

@@ -1,11 +1,11 @@
-# Fact: is_proxmox
+# Fact: is_pve_kernel
 #
 # Purpose: Returns true if the system runs a PVE kernel.
 #
 #
 require 'facter'
 
-Facter.add(:is_proxmox) do
+Facter.add(:is_pve_kernel) do
   setcode do
 
     pve = if Facter.value(:kernelrelease) =~ /^*pve/