little fixes *whistle*

Author: Shoshana Berleant

doc/users/install.rst

@@ -83,10 +83,6 @@ or::
 
     nosetests --with-doctest nipype
 
-or::
-
-    nosetests --with-doctest nipype
-
 A successful test run should complete in a few minutes and end with
 something like::
 

nipype/algorithms/rapidart.py

@@ -362,10 +362,7 @@ def _detect_outliers_core(self, imgfile, motionfile, runidx, cwd=None):
                 nim = funcs.concat_images(images)
 
         # compute global intensity signal
-        try:
-            (x, y, z, timepoints) = nim.shape
-        except ValueError as ve:
-            raise NipypeInterfaceError(ve, 'Check dimensions of input image; 4-D input required.')
+        (x, y, z, timepoints) = nim.shape
 
         data = nim.get_data()
         affine = nim.affine