Port to QStringLiteral operator

src/core/networkaccessmanager.cpp

@@ -33,6 +33,8 @@
 #include "networkaccessmanager.h"
 #include "threadsafenetworkdiskcache.h"
 
+using namespace Qt::Literals::StringLiterals;
+
 NetworkAccessManager::NetworkAccessManager(QObject *parent)
     : QNetworkAccessManager(parent) {
 
@@ -56,7 +58,7 @@ QNetworkReply *NetworkAccessManager::createRequest(Operation op, const QNetworkR
   new_request.setHeader(QNetworkRequest::UserAgentHeader, user_agent);
 
   if (op == QNetworkAccessManager::PostOperation && !new_request.header(QNetworkRequest::ContentTypeHeader).isValid()) {
-    new_request.setHeader(QNetworkRequest::ContentTypeHeader, QStringLiteral("application/x-www-form-urlencoded"));
+    new_request.setHeader(QNetworkRequest::ContentTypeHeader, u"application/x-www-form-urlencoded"_s);
   }
 
   // Prefer the cache unless the caller has changed the setting already