The drush script which provides comman line acceess to drupal functionality emits an error message when run as a cron job
tput: No value for $TERM and no -T specified# If it is not exported determine and export the number of columns.
if [ -z $COLUMNS ]; then
export COLUMNS=$(tput cols)
fiI presume drush uses this information to calculate layout of output.
However when running as a cron job COLUMNS is not set and tput gives the above error.