Update tcar_setModuleArguments function.
    
    - Previously, tcar_setModuleArguments verified and initialized
      TCAR_MODULE_ARGUMENT variables before processing them. This isn't
      necessary because the script flow never reaches this point when the
      TCAR_MODULE_ARGUMENT is empty or contains one or more spaces as
      value. In such cases the <module>_printUsage function is called and
      the script execution cut once the usage information has been printed
      out.  This update changes the tcar_setModuleArguments function to
      remove the TCAR_MODULE_ARGUMENTS verification and initialization
      from it.