Lint/ErbNewArguments

In Ruby 2.6 and greater, passing trim_mode as the third argument of
ERB.new is deprecated.

This commit updates all instances of ERB.new to instead use trim_mode as
a keyword argument.

lib/docs/generate.rb

@@ -17,12 +17,7 @@ def format_facts(fact_hash)
   scope = OpenStruct.new({
                            facts: fact_hash
                          })
-
-  erb = if ERB.instance_method(:initialize).parameters.assoc(:key) # Ruby 2.6+
-          ERB.new(File.read(PATH_TO_TEMPLATE), trim_mode: '-')
-        else
-          ERB.new(File.read(PATH_TO_TEMPLATE), nil, '-')
-        end
+  erb = ERB.new(File.read(PATH_TO_TEMPLATE), trim_mode: '-')
   erb.result(scope.instance_eval { binding })
 end
 

lib/facter/framework/cli/cli.rb

@@ -113,7 +113,7 @@ def man(*args)
       negate_options = %w[block cache custom_facts external_facts]
 
       template = File.join(File.dirname(__FILE__), '..', '..', 'templates', 'man.erb')
-      erb = ERB.new(File.read(template), nil, '-')
+      erb = ERB.new(File.read(template), trim_mode: '-')
       erb.filename = template
       puts erb.result(binding)
     end