fix wrong tool tip on repeat control

res/translations/en.json

@@ -147,6 +147,7 @@
     "Reload": "Reload",
     "Remix": "Remix",
     "Remove from playlist": "Remove from playlist",
+    "Repeat": "Repeat",
     "ReplayGain mode": "ReplayGain mode",
     "ReplayGain preamp": "ReplayGain preamp",
     "Restart required": "Restart required",

ui/widgets/auxcontrols.go

@@ -32,7 +32,7 @@ func NewAuxControls(initialVolume int) *AuxControls {
 		showQueue:     NewIconButton(myTheme.PlayQueueIcon, nil),
 	}
 	a.loop.IconSize = IconButtonSizeSmaller
-	a.loop.SetToolTip(lang.L("Shuffle"))
+	a.loop.SetToolTip(lang.L("Repeat"))
 	a.showQueue.IconSize = IconButtonSizeSmaller
 	a.showQueue.SetToolTip(lang.L("Show play queue"))
 	a.container = container.NewHBox(