Fix trailing whitespace in scripts and misc. files

Tools/Scripts/clean-header-guards

 #!/usr/bin/ruby
 
 require 'find'
 require 'optparse'
 
 options = {}
 OptionParser.new do |opts|
   opts.banner = "Usage: clean-header-guards [options]"
-  
+
   opts.on("--prefix [PREFIX]", "Append a header prefix to all guards") do |prefix|
     options[:prefix] = prefix
   end
 end.parse!
 
 IgnoredFilenamePatterns = [
   # ignore headers which are known not to have guard
-  /WebCorePrefix/, 
+  /WebCorePrefix/,
   /ForwardingHeaders/,
-  %r|bindings/objc|, 
+  %r|bindings/objc|,
   /vcproj/, # anything inside a vcproj is in the windows wasteland
-  
+
   # we don't own any of these headers
   %r|icu/unicode|,
   %r|platform/graphics/cairo|,
   %r|platform/image-decoders|,
-  
+
   /config.h/ # changing this one sounds scary
 ].freeze
 
 IgnoreFileNamesPattern = Regexp.union(*IgnoredFilenamePatterns).freeze
 
 Find::find(".") do |filename|
   next unless filename =~ /\.h$/
   next if filename.match(IgnoreFileNamesPattern)
-  
+
   File.open(filename, "r+") do |file|
     contents = file.read
     match_results = contents.match(/#ifndef (\S+)\n#define \1/s)
     if match_results
       current_guard = match_results[1]
       new_guard = File.basename(filename).sub('.', '_')
       new_guard = options[:prefix] + '_' + new_guard  if options[:prefix]
       contents.gsub!(/#{current_guard}\b/, new_guard)
     else
       puts "Ignoring #{filename}, failed to find existing header guards."
     end
     tmp_filename = filename + ".tmp"
     File.open(tmp_filename, "w+") do |new_file|
       new_file.write(contents)
     end
     File.rename tmp_filename, filename
   end
 end