switch to require_relative for all library files

Author: chuckremes

lib/io.rb

@@ -55,12 +55,12 @@ def elapsed(str)
 
 require_relative 'io/mixins/enumerable'
 
-require 'io/fcntl'
-require 'io/file'
-require 'io/socket'
-require 'io/tcp'
-require 'io/timer'
-require 'io/udp'
+require_relative 'io/fcntl'
+require_relative 'io/file'
+require_relative 'io/socket'
+require_relative 'io/tcp'
+require_relative 'io/timer'
+require_relative 'io/udp'
 
 require_relative 'io/async/private/private'
 

lib/io/file.rb

@@ -1,7 +1,7 @@
-require 'io/internal/states/file/closed'
-require 'io/internal/states/file/readonly'
-require 'io/internal/states/file/readwrite'
-require 'io/internal/states/file/writeonly'
+require_relative 'internal/states/file/closed'
+require_relative 'internal/states/file/readonly'
+require_relative 'internal/states/file/readwrite'
+require_relative 'internal/states/file/writeonly'
 
 class IO
   class File

lib/io/tcp.rb

@@ -1,7 +1,7 @@
-require 'io/internal/states/socket/closed'
-require 'io/internal/states/socket/bound'
-require 'io/internal/states/socket/connected'
-require 'io/internal/states/socket/open'
+require_relative 'internal/states/socket/closed'
+require_relative 'internal/states/socket/bound'
+require_relative 'internal/states/socket/connected'
+require_relative 'internal/states/socket/open'
 
 class IO
   class TCP

lib/io/udp.rb

@@ -1,8 +1,8 @@
-require 'io/internal/states/socket/closed'
-require 'io/internal/states/socket/bound'
-require 'io/internal/states/socket/connected'
-require 'io/internal/states/socket/unconnected'
-require 'io/internal/states/socket/open'
+require_relative 'internal/states/socket/closed'
+require_relative 'internal/states/socket/bound'
+require_relative 'internal/states/socket/connected'
+require_relative 'internal/states/socket/unconnected'
+require_relative 'internal/states/socket/open'
 
 class IO
   class UDP