Fix luacheck usage

.luacheckrc

@@ -2,7 +2,6 @@ unused_args = false
 
 read_globals = {
 	"minetest",
-	"string",
 	"table",
 	"vector",
 	"default"

font_api/fallbacks.lua

@@ -19,7 +19,6 @@
 -- This is the unicode char fallback map. If a char is not present in
 -- font, this maps indicates which char to try to use instead next.
 
--- luacheck: ignore
 return {
 	-- Lowercase chars
 	['a'] = 'A',	['b'] = 'B',	['c'] = 'C',	['d'] = 'D',
@@ -54,7 +53,7 @@ return {
 	['×'] = 'x',	['Ý'] = 'Y',
 
 	-- Lower case accents
-	['à'] = 'a',	['à'] = 'a',	['á'] = 'a',	['â'] = 'a',
+	['à'] = 'a',	['á'] = 'a',	['â'] = 'a',
 	['ã'] = 'a',	['ä'] = 'a',	['å'] = 'a',
 	['æ'] = 'ae',	['ç'] = 'c',
 	['è'] = 'e',	['é'] = 'e',	['ê'] = 'e',	['ë'] = 'e',

font_api/registry.lua

@@ -58,13 +58,9 @@ local function get_default_font()
 			end
 		end
 
-		-- If failed, chose first font
+		-- If failed, choose the first registered font
 		if default_font == nil then
-			-- luacheck: ignore 512
-			for _, font in pairs(font_api.registered_fonts) do
-				default_font = font
-				break
-			end
+			default_font = next(font_api.registered_fonts)
 		end
 
 		-- Error, no font registered