keg_relocate: split relocate_install_names and relocate_text_files

For bottle with `:any_skip_relocation`, relocating text files is
required.

Library/Homebrew/cmd/bottle.rb

@@ -169,6 +169,8 @@ module Homebrew
       begin
         keg.relocate_install_names prefix, Keg::PREFIX_PLACEHOLDER,
           cellar, Keg::CELLAR_PLACEHOLDER, :keg_only => f.keg_only?
+        keg.relocate_text_files prefix, Keg::PREFIX_PLACEHOLDER,
+          cellar, Keg::CELLAR_PLACEHOLDER
         keg.delete_pyc_files!
 
         cd cellar do

Library/Homebrew/formula_installer.rb

@@ -708,6 +708,8 @@ class FormulaInstaller
       keg.relocate_install_names Keg::PREFIX_PLACEHOLDER, HOMEBREW_PREFIX.to_s,
         Keg::CELLAR_PLACEHOLDER, HOMEBREW_CELLAR.to_s, :keg_only => formula.keg_only?
     end
+    keg.relocate_text_files Keg::PREFIX_PLACEHOLDER, HOMEBREW_PREFIX.to_s,
+      Keg::CELLAR_PLACEHOLDER, HOMEBREW_CELLAR.to_s
 
     Pathname.glob("#{formula.bottle_prefix}/{etc,var}/**/*") do |path|
       path.extend(InstallRenamed)

Library/Homebrew/keg_relocate.rb

@@ -46,7 +46,9 @@ class Keg
         end
       end
     end
+  end
 
+  def relocate_text_files(old_prefix, new_prefix, old_cellar, new_cellar)
     files = text_files | libtool_files
 
     files.group_by { |f| f.stat.ino }.each_value do |first, *rest|