Codechange: Remove c_str, if std::string_view is already accepted.

src/game/game_text.cpp

@@ -96,7 +96,7 @@ struct StringListReader : StringReader {
 	 * @param translation Are we reading a translation?
 	 */
 	StringListReader(StringData &data, const LanguageStrings &strings, bool master, bool translation) :
-			StringReader(data, strings.language.c_str(), master, translation), p(strings.lines.begin()), end(strings.lines.end())
+			StringReader(data, strings.language, master, translation), p(strings.lines.begin()), end(strings.lines.end())
 	{
 	}