Update format-field-parsing.htm

>>Once the end of the file is reached, any pending data must be discarded. (If the file ends in the middle of an event, before the final empty line, the incomplete event is not dispatched.)
message.php adds one "\n" at the end, but we need one extra,
aldo "data\r" is removed, as it adds one new line to the event.data
Merge pull request #3 from Yaffle/patch-2

Update format-field-parsing.htm