Fix possibly unassigned parameter
Fix possibly unassigned parameter

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