TRANSLATORS message regarding search-engine-providers didn't reach translation file
Since a25f4f68, there is a "TRANSLATORS" message in data/org.gnome.epiphany.gschema.xml line 38 explaining how to translate a search-engine-providers string. However this message didn't reach the translation file, which can be seen in the Brazilian Portuguese translation file in Damned Lies (search for https://duckduckgo.com/?q=%s&t=epiphany
to go directly to this translation message)
Edited by Rafael Fontenelle