avoid useless line trimming in parseResponse()

Author: lfortin

lib/util.js

@@ -188,16 +188,16 @@ async function parseResponse(output) {
   });
 
   for await (let line of rl) {
-    line = line.trim();
-
     const index = line.indexOf(":");
+
     if (index !== -1) {
       const key = line.slice(0, index).trim();
-      const value = line.slice(index + 1).trim();
+      const value = line.slice(index + 1);
+
       if (key.toLowerCase() === "status") {
         status = parseInt(value, 10);
       } else {
-        headers[key] = value;
+        headers[key] = value.trim();
       }
     } else if (line.match(/^HTTP\/1\.1/i)) {
       status = parseInt(line.split(/\s+/)[1], 10);