Don't leak property data in spi_atk_bridge_get_bus
Don't leak property data in spi_atk_bridge_get_bus

https://bugzilla.gnome.org/show_bug.cgi?id=642608

GNOME/at-spi2-core,GNOME/at-spi2-core,GNOME/at-spi2-core,Distrotech/at-spi2-atk,GNOME/at-spi2-atk,Distrotech/at-spi2-atk