readline: fix the cname of CompentryFunc
readline: fix the cname of CompentryFunc

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