fix: safely handle whitespace and consecutive newlines #1964

Job	Run time
ubuntu-latest-cmake-vulkan	6m 27s
windows-latest-cmake-hip	2m 24s
ubuntu-latest-cmake	3m 11s
ubuntu-latest-rocm	40m 48s
windows-latest-cmake (cuda12, -DSD_CUDA=ON -DSD_BUILD_SHARED_LIBS=ON -DCMAKE_CUDA_ARCHITECTURES='...	1h 48m 54s
Build and push container images (sycl)	8m 22s
windows-latest-cmake (noavx, -DGGML_NATIVE=OFF -DGGML_AVX=OFF -DGGML_AVX2=OFF -DGGML_FMA=OFF -DSD...	1m 50s
windows-latest-cmake (avx512, -DGGML_NATIVE=OFF -DGGML_AVX512=ON -DGGML_AVX=ON -DGGML_AVX2=ON -DS...	2m 8s
windows-latest-cmake (vulkan, -DSD_VULKAN=ON -DSD_BUILD_SHARED_LIBS=ON)	5m 28s
windows-latest-cmake (avx, -DGGML_NATIVE=OFF -DGGML_AVX=ON -DGGML_AVX2=OFF -DSD_BUILD_SHARED_LIBS...	1m 42s
windows-latest-cmake (avx2, -DGGML_NATIVE=OFF -DGGML_AVX2=ON -DSD_BUILD_SHARED_LIBS=ON)	2m 4s
macOS-latest-cmake	4m 54s
Build and push container images (musa)	45m 48s
Build and push container images (vulkan)	9m 2s
release	0s
	4h 3m 2s

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