nobu	2018-12-11 09:05:53 +0900 (Tue, 11 Dec 2018)

  New Revision: 66320

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=66320

  Log:
    Fix r663197

  Modified files:
    trunk/lib/net/http/header.rb
Index: lib/net/http/header.rb
===================================================================
--- lib/net/http/header.rb	(revision 66319)
+++ lib/net/http/header.rb	(revision 66320)
@@ -22,7 +22,7 @@ module Net::HTTPHeader https://github.com/ruby/ruby/blob/trunk/lib/net/http/header.rb#L22
         if value.count("\r\n") > 0
           raise ArgumentError, "header #{key} has field value #{value.inspect}, this cannot include CR/LF"
         end
-        @header[key.to_str.downcase] = [value]
+        @header[key.to_s.downcase] = [value]
       end
     end
   end
@@ -36,14 +36,14 @@ module Net::HTTPHeader https://github.com/ruby/ruby/blob/trunk/lib/net/http/header.rb#L36
   # Returns the header field corresponding to the case-insensitive key.
   # For example, a key of "Content-Type" might return "text/html"
   def [](key)
-    a = @header[key.to_str.downcase] or return nil
+    a = @header[key.to_s.downcase] or return nil
     a.join(', ')
   end
 
   # Sets the header field corresponding to the case-insensitive key.
   def []=(key, val)
     unless val
-      @header.delete key.to_str.downcase
+      @header.delete key.to_s.downcase
       return val
     end
     set_field(key, val)
@@ -65,7 +65,7 @@ module Net::HTTPHeader https://github.com/ruby/ruby/blob/trunk/lib/net/http/header.rb#L65
   #   p request.get_fields('X-My-Header')   #=> ["a", "b", "c"]
   #
   def add_field(key, val)
-    stringified_downcased_key = key.to_str.downcase
+    stringified_downcased_key = key.to_s.downcase
     if @header.key?(stringified_downcased_key)
       append_field_value(@header[stringified_downcased_key], val)
     else
@@ -78,13 +78,13 @@ module Net::HTTPHeader https://github.com/ruby/ruby/blob/trunk/lib/net/http/header.rb#L78
     when Enumerable
       ary = []
       append_field_value(ary, val)
-      @header[key.to_str.downcase] = ary
+      @header[key.to_s.downcase] = ary
     else
       val = val.to_s # for compatibility use to_s instead of to_str
       if val.b.count("\r\n") > 0
         raise ArgumentError, 'header field value cannot include CR/LF'
       end
-      @header[key.to_str.downcase] = [val]
+      @header[key.to_s.downcase] = [val]
     end
   end
 
@@ -113,7 +113,7 @@ module Net::HTTPHeader https://github.com/ruby/ruby/blob/trunk/lib/net/http/header.rb#L113
   #     #=> "session=al98axx; expires=Fri, 31-Dec-1999 23:58:23, query=rubyscript; expires=Fri, 31-Dec-1999 23:58:23"
   #
   def get_fields(key)
-    stringified_downcased_key = key.to_str.downcase
+    stringified_downcased_key = key.to_s.downcase
     return nil unless @header[stringified_downcased_key]
     @header[stringified_downcased_key].dup
   end
@@ -123,7 +123,7 @@ module Net::HTTPHeader https://github.com/ruby/ruby/blob/trunk/lib/net/http/header.rb#L123
   # raises an IndexError if there's no header field named +key+
   # See Hash#fetch
   def fetch(key, *args, &block)   #:yield: +key+
-    a = @header.fetch(key.to_str.downcase, *args, &block)
+    a = @header.fetch(key.to_s.downcase, *args, &block)
     a.kind_of?(Array) ? a.join(', ') : a
   end
 
@@ -184,12 +184,12 @@ module Net::HTTPHeader https://github.com/ruby/ruby/blob/trunk/lib/net/http/header.rb#L184
 
   # Removes a header field, specified by case-insensitive key.
   def delete(key)
-    @header.delete(key.to_str.downcase)
+    @header.delete(key.to_s.downcase)
   end
 
   # true if +key+ header exists.
   def key?(key)
-    @header.key?(key.to_str.downcase)
+    @header.key?(key.to_s.downcase)
   end
 
   # Returns a Hash consisting of header names and array of values.

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