scripted-diff: Remove trailing whitespaces

-BEGIN VERIFY SCRIPT-

sed --in-place'' --regexp-extended 's/[[:space:]]+$//g' $(git grep -I --files-with-matches --extended-regexp '[[:space:]]+$' -- src test  ':!*.svg' ':!src/crypto/sha256_sse4*' ':!src/leveldb' ':!src/qt/locale' ':!src/secp256k1' ':!src/univalue')

-END VERIFY SCRIPT-

src/qt/optionsmodel.cpp

@@ -57,7 +57,7 @@ void OptionsModel::Init(bool resetSettings)
         settings.setValue("fHideTrayIcon", false);
     fHideTrayIcon = settings.value("fHideTrayIcon").toBool();
     Q_EMIT hideTrayIconChanged(fHideTrayIcon);
-    
+
     if (!settings.contains("fMinimizeToTray"))
         settings.setValue("fMinimizeToTray", false);
     fMinimizeToTray = settings.value("fMinimizeToTray").toBool() && !fHideTrayIcon;