CLOSE #5627 Allowed external logging modules.

composer.json

htdocs/admin/syslog.php

htdocs/core/class/conf.class.php

htdocs/core/modules/syslog/mod_syslog_sentry.php

htdocs/langs/ar_SA/admin.lang

htdocs/langs/bg_BG/admin.lang

htdocs/langs/bn_BD/admin.lang

htdocs/langs/bs_BA/admin.lang

htdocs/langs/ca_ES/admin.lang

htdocs/langs/cs_CZ/admin.lang

htdocs/langs/da_DK/admin.lang

htdocs/langs/de_DE/admin.lang

htdocs/langs/el_GR/admin.lang

htdocs/langs/en_US/admin.lang

htdocs/langs/es_ES/admin.lang

htdocs/langs/et_EE/admin.lang

htdocs/langs/eu_ES/admin.lang

htdocs/langs/fa_IR/admin.lang

htdocs/langs/fi_FI/admin.lang

htdocs/langs/fr_FR/admin.lang