glib-2.0: Add string.valid_char
glib-2.0: Add string.valid_char

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