fix formattings

Author: RasmiaKulan

mantidimaging/gui/test/gui_system_base.py

@@ -143,7 +143,7 @@ def _open_reconstruction(self):
 
     def _open_spectrum_viewer(self):
         self.main_window.actionSpectrumViewer.trigger()
-    
+
     def _open_view_3d(self):
         self.main_window.actionViewer3d.trigger()
 

mantidimaging/gui/windows/viewer_3d/__init__.py

@@ -17,10 +17,7 @@ def __init__(self, parent=None):
         self.vtk_widget = QVTKRenderWindowInteractor(central_widget)
 
         # Set up the CIL Viewer
-        self.viewer = CILViewer(
-            renWin=self.vtk_widget.GetRenderWindow(),
-            iren=self.vtk_widget
-        )
+        self.viewer = CILViewer(renWin=self.vtk_widget.GetRenderWindow(), iren=self.vtk_widget)
 
         # Add the VTK widget to the layout
         layout.addWidget(self.vtk_widget)