Test Perl installation and required modules for WriteXLS()
testPerl(perl = "perl", verbose = TRUE)
Name of the perl executable to be called.
Output test result messages.
A boolean value (TRUE or FALSE). TRUE if Perl and ALL required modules are found
This function will test your current system to be sure that Perl is installed
and if so, whether or not all of the Perl modules required for WriteXLS()
are present.
Success and/or error messages as appropriate will be output.