clean_batch_for_jruby returns nil unless batch contains a linefeed ("\n")

[breckenedge]

The clean_batch_for_jruby method is called during parse_batch. However, unless the message contains a linefeed (0xA), nil is returned, which causes an HL7::ParseError to be raised.

Current method definition:

def clean_batch_for_jruby(batch)
  batch.gsub("\n", "\r") if batch.include?("\n") # <= returns nil unless batch.include?("\n")
end

This probably should be:

def clean_batch_for_jruby(batch)
  batch.include?("\n") ? batch.gsub("\n", "\r") : batch
end

All of the examples in"lib/test/hl7_messages.rb" terminate with a linefeed because they're using ruby HEREDOCs.