GAsync: Fix freeing of return value
GAsync: Fix freeing of return value

severinh/vala,severinh/vala,frida/vala,phako/vala,spidermonkdust/vala,lovebug356/vala,frida/vala,Distrotech/vala,frida/vala,rvu95/vala,Jc2k/vala,jessevdk/vala,themiwi/vala,kamanashisroy/aroop,GNOME/vala,Distrotech/vala,flobrosch/vala-fixes,GNOME/vala,playya/vala,tjol/vala-tjol,lovebug356/vala,tjol/vala-tjol,themiwi/vala,severinh/vala,playya/vala,xdave/pvala,GNOME/vala,tjol/vala-tjol,kamanashisroy/aroop,flobrosch/vala-fixes,GNOME/vala,spidermonkdust/vala,jessevdk/vala,Distrotech/vala,jessevdk/vala,rvu95/vala,Jc2k/vala,flobrosch/vala-fixes,frida/vala,phako/vala,themiwi/vala,spidermonkdust/vala,kamanashisroy/aroop,rvu95/vala,frida/vala,playya/vala