stop abusing bang method

lib/kaminari.rb

@@ -31,7 +31,7 @@ require 'kaminari/models/page_scope_methods'
 require 'kaminari/models/configuration_methods'
 require 'kaminari/hooks'
 
-# if not using Railtie, call `Kaminari::Hooks.init!` directly
+# if not using Railtie, call `Kaminari::Hooks.init` directly
 if defined? Rails
   require 'kaminari/railtie'
   require 'kaminari/engine'

lib/kaminari/grape.rb

@@ -1,4 +1,4 @@
 require 'grape'
 require 'kaminari'
 
-Kaminari::Hooks.init!
+Kaminari::Hooks.init

lib/kaminari/hooks.rb

@@ -1,6 +1,6 @@
 module Kaminari
   class Hooks
-    def self.init!
+    def self.init
       ActiveSupport.on_load(:active_record) do
         require 'kaminari/models/active_record_extension'
         ::ActiveRecord::Base.send :include, Kaminari::ActiveRecordExtension

lib/kaminari/railtie.rb

@@ -1,7 +1,7 @@
 module Kaminari
   class Railtie < ::Rails::Railtie #:nodoc:
     initializer 'kaminari' do |_app|
-      Kaminari::Hooks.init!
+      Kaminari::Hooks.init
     end
   end
 end

lib/kaminari/sinatra.rb

@@ -2,4 +2,4 @@ require 'sinatra/base'
 require 'kaminari'
 require 'kaminari/helpers/sinatra_helpers'
 
-Kaminari::Hooks.init!
+Kaminari::Hooks.init