Replaces keyword args with opts

Author: myxoh

lib/grape/api.rb

@@ -47,9 +47,9 @@ def make_inheritable
       # For instance, a descripcion could be done using: `desc configuration[:description]` if it may vary
       # depending on where the endpoint is mounted. Use with care, if you find yourself using configuration
       # too much, you may actually want to provide a new API rather than remount it.
-      def mount_instance(configuration: {})
+      def mount_instance(opts = {})
         instance = Class.new(@base_parent)
-        instance.instance_variable_set(:@configuration, configuration)
+        instance.instance_variable_set(:@configuration, opts[:configuration] || {})
         instance.define_singleton_method(:configuration) { @configuration }
         replay_setup_on(instance)
         @instances << instance

lib/grape/dsl/routing.rb

@@ -77,11 +77,11 @@ def do_not_route_options!
           namespace_inheritable(:do_not_route_options, true)
         end
 
-        def mount(mounts, with: {})
+        def mount(mounts, opts = {})
           mounts = { mounts => '/' } unless mounts.respond_to?(:each_pair)
           mounts.each_pair do |app, path|
             if app.respond_to?(:mount_instance)
-              return mount(app.mount_instance(configuration: with) => path)
+              return mount(app.mount_instance(configuration: opts[:with] || {}) => path)
             end
             in_setting = inheritable_setting