Remove warnings caused by ruby 2.7 keyword args checks.

Signed-off-by: Ryan Davis <zenspider@chef.io>

.travis.yml

@@ -10,6 +10,7 @@ rvm:
   - 2.4.9
   - 2.5.7
   - 2.6.5
+  - 2.7.0preview2
   - ruby-head
   - jruby-9.2.6.0
   - jruby-head

lib/strings.rb

@@ -15,8 +15,8 @@ module Strings
   # @see Strings::Align#align
   #
   # @api public
-  def align(*args)
-    Align.align(*args)
+  def align(*args, **kws)
+    Align.align(*args, **kws)
   end
   module_function :align
 

lib/strings/align.rb

@@ -39,7 +39,7 @@ module Align
     def align(text, width, direction: :left, **options)
       return text if width.nil?
       method = to_alignment(direction)
-      send(method, text, width, options)
+      send(method, text, width, **options)
     end
     module_function :align
 

lib/strings/extensions.rb

@@ -5,8 +5,8 @@
 module Strings
   module Extensions
     refine String do
-      def align(*args)
-        Align.align(self, *args)
+      def align(*args, **kws)
+        Align.align(self, *args, **kws)
       end
 
       def align_left(*args)