tests: Fix indentation of a block in the appinfo test
tests: Fix indentation of a block in the appinfo test

No functional changes.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

https://gitlab.gnome.org/GNOME/glib/issues/538

endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib