Fix unit test filename.

unsupported/test/CMakeLists.txt

diff --git a/unsupported/test/CMakeLists.txt b/unsupported/test/CMakeLists.txt
index d70bf2b..d16c426 100644
--- a/unsupported/test/CMakeLists.txt
+++ b/unsupported/test/CMakeLists.txt
@@ -152,7 +152,7 @@
 endif()
 
 # These tests needs nvcc
-find_package(CUDA 7)
+find_package(CUDA 7.0)
 if(CUDA_FOUND)
   set(CUDA_PROPAGATE_HOST_FLAGS OFF)
   if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
@@ -170,4 +170,4 @@
   ei_add_test(cxx11_tensor_argmax_cuda)
 
   unset(EIGEN_ADD_TEST_FILENAME_EXTENSION)
-endif(CUDA_FOUND)
+endif()

unsupported/test/cxx11_tensor_reduction_cuda.cu

diff --git a/unsupported/test/cxx11_tensor_reduction.cu b/unsupported/test/cxx11_tensor_reduction_cuda.cu
similarity index 100%
rename from unsupported/test/cxx11_tensor_reduction.cu
rename to unsupported/test/cxx11_tensor_reduction_cuda.cu