Hi! It seems there is a rogue quote in mail/roundcubemail/patches/patch-config_config_inc_php_sample before the option value 'sqlite://...'
Daniel -- LÉVAI Dániel PGP key ID = 0x83B63A8F Key fingerprint = DBEC C66B A47A DFA2 792D 650C C69B BE4C 83B6 3A8F