Joomla! Formatted Text File Log class This class is designed to use as a base for building formatted text files for output. By
default it emulates the Syslog style format output. This is a disk based output format.
Method to initialise the log file. This will create the folder path to the file if it doesn't already
exist and also get a new file header if the file doesn't already exist. If the file already exists it
will simply open it for writing.