Settings: Mention Shift+primary click on Range too

This already existed, and since this doc blurb is already inflating
dramatically, what’s another half a line?

diff --git a/gtk/gtksettings.c b/gtk/gtksettings.c
index 0753feef628ca16cfa17f64c3db63e4f15c37503..a7b0c7952e67c1276b73d18460cfbf7e3608c71e 100644 (file)
--- a/gtk/gtksettings.c
+++ b/gtk/gtksettings.c
@@ -786,7 +786,8 @@ gtk_settings_class_init (GtkSettingsClass *class)
    * slider/value to move by the range’s page-size towards the point clicked.
    *
    * Whichever action you choose for the primary button, the other action will
-   * be available by clicking the middle mouse button (since GTK+ 3.22.25).
+   * be available by holding Shift and primary-clicking, or (since GTK+ 3.22.25)
+   * clicking the middle mouse button.
    *
    * Since: 3.6
    */