lib/*: Prefer require_relative over require, remove explicit extension

[#15206] [Fix GH-1976]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65506 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/irb/cmd/chws.rb

@@ -10,8 +10,8 @@
 #
 #
 
-require "irb/cmd/nop.rb"
-require "irb/ext/change-ws.rb"
+require_relative "nop"
+require_relative "../ext/change-ws"
 
 # :stopdoc:
 module IRB

lib/irb/cmd/help.rb

@@ -11,7 +11,7 @@
 
 require 'rdoc/ri/driver'
 
-require "irb/cmd/nop.rb"
+require_relative "nop"
 
 # :stopdoc:
 module IRB

lib/irb/cmd/load.rb

@@ -10,7 +10,7 @@
 #
 #
 
-require "irb/cmd/nop.rb"
+require_relative "nop"
 require_relative "../ext/loader"
 
 # :stopdoc:

lib/irb/cmd/pushws.rb

@@ -10,8 +10,8 @@
 #
 #
 
-require "irb/cmd/nop.rb"
-require "irb/ext/workspaces.rb"
+require_relative "nop"
+require_relative "../ext/workspaces"
 
 # :stopdoc:
 module IRB

lib/irb/cmd/subirb.rb

@@ -9,8 +9,8 @@
 #
 #
 
-require "irb/cmd/nop.rb"
-require "irb/ext/multi-irb"
+require_relative "nop"
+require_relative "../ext/multi-irb"
 
 # :stopdoc:
 module IRB

lib/irb/context.rb

@@ -11,8 +11,8 @@
 #
 require_relative "workspace"
 require_relative "inspector"
-require "irb/input-method"
-require "irb/output-method"
+require_relative "input-method"
+require_relative "output-method"
 
 module IRB
   # A class that wraps the current state of the irb session, including the

lib/irb/help.rb

@@ -10,7 +10,7 @@
 #
 #
 
-require 'irb/magic-file'
+require_relative 'magic-file'
 
 module IRB
   # Outputs the irb help message, see IRB@Command+line+options.

lib/irb/input-method.rb

@@ -10,7 +10,7 @@
 #
 #
 require_relative 'src_encoding'
-require 'irb/magic-file'
+require_relative 'magic-file'
 
 module IRB
   STDIN_FILE_NAME = "(line)" # :nodoc:

lib/irb/notifier.rb

@@ -11,7 +11,7 @@
 #
 
 require "e2mmap"
-require "irb/output-method"
+require_relative "output-method"
 
 module IRB
   # An output formatter used internally by the lexer.

lib/irb/ruby-lex.rb

@@ -12,7 +12,7 @@
 
 require "e2mmap"
 require_relative "slex"
-require "irb/ruby-token"
+require_relative "ruby-token"
 
 # :stopdoc:
 class RubyLex

lib/rss/rss.rb

@@ -65,7 +65,7 @@ end
 require "English"
 require_relative "utils"
 require_relative "converter"
-require "rss/xml-stylesheet"
+require_relative "xml-stylesheet"
 
 module RSS
 

lib/shell/command-processor.rb

@@ -14,8 +14,8 @@ require "e2mmap"
 
 require_relative "error"
 require_relative "filter"
-require "shell/system-command"
-require "shell/builtin-command"
+require_relative "system-command"
+require_relative "builtin-command"
 
 class Shell
   # In order to execute a command on your OS, you need to define it as a

lib/unicode_normalize/normalize.rb

@@ -18,7 +18,7 @@
 # content are purely an implementation detail, and should not be exposed in
 # any test or spec or otherwise.
 
-require 'unicode_normalize/tables.rb'
+require_relative 'tables'
 
 
 module UnicodeNormalize  # :nodoc:

lib/webrick/httpservlet/erbhandler.rb

@@ -9,7 +9,7 @@
 #
 # $IPR: erbhandler.rb,v 1.25 2003/02/24 19:25:31 gotoyuzo Exp $
 
-require 'webrick/httpservlet/abstract.rb'
+require_relative 'abstract'
 
 require 'erb'
 

lib/webrick/httpservlet/prochandler.rb

@@ -9,7 +9,7 @@
 #
 # $IPR: prochandler.rb,v 1.7 2002/09/21 12:23:42 gotoyuzo Exp $
 
-require 'webrick/httpservlet/abstract.rb'
+require_relative 'abstract'
 
 module WEBrick
   module HTTPServlet