glib-2.0: Add PrintfFormat annotation to GLib.Error constructor
glib-2.0: Add PrintfFormat annotation to GLib.Error constructor

Fixes bug 622485.

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