Resolve Rubocop warnings

* Removed the useless assignment in the config_version.rb error catching
* Single quote vs. double quote in Puppetfile

Puppetfile

@@ -1,10 +1,10 @@
-forge "https://forge.puppet.com"
+forge 'https://forge.puppet.com'
 
 # Modules from the Puppet Forge
 # Versions should be updated to be the latest at the time you start
-#mod "puppetlabs/inifile",     '1.5.0'
-#mod "puppetlabs/stdlib",      '4.11.0'
-#mod "puppetlabs/concat",      '2.1.0'
+#mod 'puppetlabs/inifile',     '1.5.0'
+#mod 'puppetlabs/stdlib',      '4.11.0'
+#mod 'puppetlabs/concat',      '2.1.0'
 
 # Modules from Git
 # Examples: https://github.com/puppetlabs/r10k/blob/master/doc/puppetfile.mkd#examples

scripts/config_version.rb

@@ -2,7 +2,7 @@
 begin
   require 'rugged'
   require 'socket'
-rescue LoadError => e
+rescue LoadError
   t = Time.new
   puts t.to_i
 else