Now showing 0.0 hours as empty string

www/timesheet-monthly-hours-absences2.tcl

@@ -432,6 +432,7 @@ db_foreach sql $sql {
 	set val [set "hours_$d"]
 	if {"" eq $val} { set val 0.00 }
 	set "hours_${d}_formatted" [im_report_format_number [expr round(100.0 * $val) / 100.0] $output_format $number_locale]
+	if {0.0 == $val} { set "hours_${d}_formatted" "" }
     }
 
     if {"" eq $object_name} { set object_name "undefined" }
@@ -449,6 +450,7 @@ db_foreach sql $sql {
     for {set d 1} {$d <= $report_year_month_days_in_month} {incr d} {
 	set val [set "hours_${d}_subtotal"]
 	set "hours_${d}_subtotal_formatted" [im_report_format_number [expr round(100.0 * $val) / 100.0] $output_format $number_locale]
+	if {0.0 == $val} { set "hours_${d}_subtotal_formatted" "" }
     }
 
     set last_value_list [im_report_render_header \