gdbm: fix stack effect comment
gdbm: fix stack effect comment

erg/factor,kingcons/factor,erg/factor,mcandre/factor,mcandre/factor,erg/factor,mcandre/factor,kingcons/factor,erg/factor,erg/factor,mcandre/factor,erg/factor,kingcons/factor,mcandre/factor,kingcons/factor,mcandre/factor,mcandre/factor,erg/factor