libglnx: bump for -Wmaybe-uninitialized fix
libglnx: bump for -Wmaybe-uninitialized fix

https://github.com/GNOME/libglnx/pull/37

Closes: #715
Approved by: cgwalters

GNOME/ostree,GNOME/ostree,GNOME/ostree,GNOME/ostree,GNOME/ostree