STYLE: Fixing indentation on Base/Segmentation/Testing/CMakeLists.txt

Change-Id: I7f3394484965a0c32b0d920671cba988d5ecc6bc
Merge topic 'FixAddTestFormmatingInCMakeLists.txt'

4d9393e STYLE: Fixing indentation on Base/Segmentation/Testing/CMakeLists.txt
Merge branch 'master' of git://tubetk.org/TubeTK into MoveIntoITKTubeNamespace

Change-Id: I5702eae9a639ecf271d9bb6a4805e0bb24072179