examples/outline_collapsed.rb in write_xlsx-1.10.0 vs examples/outline_collapsed.rb in write_xlsx-1.10.1

@@ -22,10 +22,10 @@
 worksheet4 = workbook.add_worksheet('Collapsed Rows 3')
 worksheet5 = workbook.add_worksheet('Outline Columns')
 worksheet6 = workbook.add_worksheet('Collapsed Columns')
 
 # Add a general format
-bold = workbook.add_format(:bold => 1)
+bold = workbook.add_format(bold: 1)
 
 ###############################################################################
 #
 # Example 1: Create a worksheet with outlined rows. It also includes SUBTOTAL()
 # functions so that it looks like the type of automatic outlines that are