[CMake] Problems with CMake.ModuleNotices test

[Orion Poplawski]

It looks like the CMake.ModuleNotices test is not parallel safe.  I'm 
seeing randomly different errors on builds:

build #1
148: CMake Error at ModuleNoticesTest.cmake:44 (message):
148:   Some modules do not have a valid copyright notice:
148:
148:     FindEXPAT.cmake
148:     FindOpenSceneGraph.cmake

and

build #2
148: CMake Error at ModuleNoticesTest.cmake:44 (message):
148:   Some modules do not have a valid copyright notice:
148:
148:     FindPerlLibs.cmake


-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA/CoRA Division                    FAX: 303-415-9702
3380 Mitchell Lane                  orion at cora.nwra.com
Boulder, CO 80301              http://www.cora.nwra.com