open Unicode data in binary mode

* tool/enc-unicode.rb (data_foreach): open in binary mode because
  Unicode 9.0.0 contains non-ascii characters.

* template/unicode_norm_gen.tmpl: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55945 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

template/unicode_norm_gen.tmpl

@@ -66,7 +66,7 @@ class Array
 end
 
 # read the file 'CompositionExclusions.txt'
-composition_exclusions = vpath.open("#{InputDataDir}/CompositionExclusions.txt") {|f|
+composition_exclusions = vpath.open("#{InputDataDir}/CompositionExclusions.txt", 'rb') {|f|
   base = Regexp.quote(File.basename(f.path, '.*'))
   ext = Regexp.quote(File.extname(f.path))
   version = (line = f.gets)[/^# *#{base}-([\d.]+)#{ext}\s*$/, 1] or

tool/enc-unicode.rb

@@ -281,7 +281,7 @@ def data_foreach(name, &block)
   fn = get_file(name)
   warn "Reading #{name}"
   pat = /^# #{name.sub(/\./, '-([\\d.]+)\\.')}/
-  File.open(fn) do |f|
+  File.open(fn, 'rb') do |f|
     line = f.gets
     unless pat =~ line
       raise ArgumentError, "#{name}: no Unicode version"