Modernize code

src/widgets/addhostdialog.cpp

@@ -38,7 +38,7 @@ public:
     KLDAP::LdapConfigWidget *mCfg = nullptr;
     KLDAP::LdapServer *mServer = nullptr;
     QPushButton *mOkButton = nullptr;
-    AddHostDialog *q = nullptr;
+    AddHostDialog *const q;
 };
 
 void AddHostDialogPrivate::readConfig()

src/widgets/ldapclient.cpp

@@ -43,7 +43,7 @@ public:
     void slotInfoMessage(KJob *, const QString &info, const QString &);
     void slotDone();
 
-    LdapClient *q = nullptr;
+    LdapClient *const q;
 
     KLDAP::LdapServer mServer;
     QString mScope;

src/widgets/ldapclientsearch.cpp

@@ -37,8 +37,6 @@ class Q_DECL_HIDDEN LdapClientSearch::Private
 public:
     Private(LdapClientSearch *qq)
         : q(qq)
-        , mActiveClients(0)
-        , mNoLDAPLookup(false)
     {
         mClientSearchConfig = new LdapClientSearchConfig;
     }
@@ -59,7 +57,7 @@ public:
     void slotDataTimer();
     void slotFileChanged(const QString &);
 
-    LdapClientSearch *q = nullptr;
+    LdapClientSearch *const q;
     QList<LdapClient *> mClients;
     QStringList mAttributes;
     QString mSearchText;

src/widgets/ldapconfigwidget.cpp

@@ -32,7 +32,7 @@ public:
         : mParent(parent)
     {
         mainLayout = new QGridLayout(mParent);
-        mainLayout->setContentsMargins(0, 0, 0, 0);
+        mainLayout->setContentsMargins({});
     }
 
     void setLDAPPort();