tests/auto/corelib: Remove some placeholder formatting.

Use QByteArray/QString addition instead in loops and for
test row names.

Change-Id: Ieffb429efdc14aa5932b3fcdef5a18e13a62d35f
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/tests/auto/corelib/itemmodels/qabstractitemmodel/tst_qabstractitemmodel.cpp b/tests/auto/corelib/itemmodels/qabstractitemmodel/tst_qabstractitemmodel.cpp
index 450a1f84c6..2570beb6c2 100644
--- a/tests/auto/corelib/itemmodels/qabstractitemmodel/tst_qabstractitemmodel.cpp
+++ b/tests/auto/corelib/itemmodels/qabstractitemmodel/tst_qabstractitemmodel.cpp
@@ -157,9 +157,10 @@ QtTestModel::QtTestModel(int rows, int columns, QObject *parent)
 {
     table.resize(rows);
     for (int r = 0; r < rows; ++r) {
+        const QString prefix = QString::number(r) + QLatin1Char('/');
         table[r].resize(columns);
         for (int c = 0; c < columns; ++c)
-            table[r][c] = QString("%1/%2").arg(r).arg(c);
+            table[r][c] = prefix + QString::number(c);
     }
 }