Continue Fix Travis compile error.

doc/tutorial/loop.txt

@@ -236,7 +236,7 @@ The full documentation can be found in the library: :ref:`Scan <lib_scan>`.
 
 .. testoutput::
 
-[[  1.40514825   1.40514825]
+	[[  1.40514825   1.40514825]
 		 [  2.88898899   2.38898899]
 		 [  4.34018291   4.34018291]
 		 [  6.53463142   6.78463142]
@@ -340,7 +340,7 @@ Note that we need to iterate over the indices of ``y`` and not over the elements
 
 .. testoutput::
 
-[[ 0.96402758  0.        ]
+	[[ 0.96402758  0.        ]
      [ 0.          0.96402758]
      [ 0.          0.        ]
      [ 0.76159416  0.76159416]