Ignore connection errors in read_line?.

Author: ioquatix

lib/protocol/http1/connection.rb

@@ -350,7 +350,6 @@ def read(length)
 			# Read a line from the connection.
 			#
 			# @returns [String | Nil] the line read, or nil if the connection is closed.
-			# @raises [EOFError] if the connection is closed.
 			# @raises [LineLengthError] if the line is too long.
 			def read_line?
 				if line = @stream.gets(CRLF, @maximum_line_length)
@@ -361,6 +360,8 @@ def read_line?
 				end
 
 				return line
+			rescue EOFError, Errno::ECONNRESET, Errno::EPIPE
+				return nil
 			end
 
 			# Read a line from the connection.