Fix broken test for CMake "-NOTFOUND" string
Fix broken test for CMake "-NOTFOUND" string


Former-commit-id: c2ac24013a551f1b7a4807a6253418a6fb804edf
Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide