DiskUsage: Style fixes

src/apps/diskusage/ControlsView.cpp

@@ -155,7 +155,6 @@ ControlsView::VolumeTabView::TabFrame(int32 index) const
 	float x = 0.0f;
 	float width = 0.0f;
 	float minStringWidth = StringWidth("Haiku");
-
 	int countTabs = CountTabs();
 
 	// calculate the total width if no truncation is made at all
@@ -167,9 +166,9 @@ ControlsView::VolumeTabView::TabFrame(int32 index) const
 		float tabLabelWidth = StringWidth(TabAt(i)->Label());
 		if (tabLabelWidth < minStringWidth)
 			tabLabelWidth = minStringWidth;
+
 		float tabWidth = tabLabelWidth + 3.0f * kSmallHMargin
 			+ ((VolumeTab*)TabAt(i))->IconWidth();
-	
 		margins[i] = tabWidth - averageWidth;
 		width += tabWidth;
 	}