misc.search: make header use query not line

src/modules/misc.js

@@ -570,7 +570,7 @@ search.callback = async function (msg, line, args, {results = 2}) {
     .json()
     .then((arr) => arr.splice(0, Number(results)));
 
-  let out = `__**Results for \`${safeString(line)}\`**__\n`;
+  let out = `__**Results for \`${safeString(query)}\`**__\n`;
   for (const result of searchResults) {
     if (result.special_response) {
       out += "> " + parseHtmlEntities(result.special_response.response.split("\n").join("\n> "));