legacy 1d dialog: wording

GUI/View/Import/Legacy1dDialog.cpp

@@ -29,7 +29,7 @@ ImportSettings1D Legacy1dDialog::Msettings = legacy1D_2cols;
 
 Legacy1dDialog::Legacy1dDialog()
 {
-    setWindowTitle("Define legacy input format");
+    setWindowTitle("Specify legacy input format");
     setWindowFlags(Qt::Dialog);
 
     auto vbox = new QVBoxLayout;
@@ -128,21 +128,21 @@ Legacy1dDialog::Legacy1dDialog()
     {
         auto sortCheckbox = new QCheckBox;
         sortCheckbox->setChecked(Msettings.sort);
-        form211->addRow("Sort by argument", sortCheckbox);
+        form211->addRow("Sort by Q", sortCheckbox);
         connect(sortCheckbox, &QCheckBox::toggled,
                 [&p = Msettings](bool checked) { p.sort = checked; });
     }
     {
         auto negativeCheckbox = new QCheckBox;
         negativeCheckbox->setChecked(Msettings.rm_negative);
-        form211->addRow("Discard negative argument", negativeCheckbox);
+        form211->addRow("Discard negative Q", negativeCheckbox);
         connect(negativeCheckbox, &QCheckBox::toggled,
                 [&p = Msettings](bool checked) { p.rm_negative = checked; });
     }
     {
         auto duplicateCheckbox = new QCheckBox;
         duplicateCheckbox->setChecked(Msettings.rm_duplications);
-        form211->addRow("Discard argument duplications", duplicateCheckbox);
+        form211->addRow("Discard Q duplications", duplicateCheckbox);
         connect(duplicateCheckbox, &QCheckBox::toggled,
                 [&p = Msettings](bool checked) { p.rm_duplications = checked; });
     }