Fix atspi_table_get_column_header
Fix atspi_table_get_column_header

GNOME/at-spi2-core,gloob/gloob-s-at-spi2-core,gloob/gloob-s-at-spi2-core,GNOME/at-spi2-core,GNOME/at-spi2-core,gloob/gloob-s-at-spi2-core