GVariant: Fix C warning in array serialization
GVariant: Fix C warning in array serialization

jessevdk/vala,Distrotech/vala,kamanashisroy/aroop,frida/vala,severinh/vala,kamanashisroy/aroop,frida/vala,jessevdk/vala,GNOME/vala,playya/vala,playya/vala,Distrotech/vala,Distrotech/vala,spidermonkdust/vala,rvu95/vala,GNOME/vala,flobrosch/vala-fixes,GNOME/vala,frida/vala,severinh/vala,flobrosch/vala-fixes,spidermonkdust/vala,rvu95/vala,frida/vala,rvu95/vala,playya/vala,severinh/vala,xdave/pvala,tjol/vala-tjol,flobrosch/vala-fixes,spidermonkdust/vala,GNOME/vala,frida/vala,kamanashisroy/aroop,tjol/vala-tjol,tjol/vala-tjol,jessevdk/vala