lowercase fix #137

Job	Run time
🐧 Linux (SCons, GCC)	15m 36s
🐧 Linux (SCons, GCC, Double Precision)	15m 36s
🏁 Windows (SCons, x86_64, MSVC)	13m 18s
🏁 Windows (SCons, x86_64, MinGW)	1h 21m 33s
🍎 macOS (SCons, universal)	12m 54s
🤖 Android (SCons, arm64)	10m 45s
🍏 iOS (SCons, arm64)	6m 28s
🌐 Web (SCons, wasm32)	20m 53s
🐧 Linux (CMake, GCC)	18m 51s
🐧 Linux (CMake, GCC, Double Precision)	19m 7s
🏁 Windows (CMake, x86_64, MSVC)	27m 32s
🏁 Windows (CMake, x86_64, MinGW)	59m 35s
🍎 macOS (CMake, universal)	27m 44s
🤖 Android (CMake, arm64)	13m 42s
🌐 Web (CMake, wasm32)	26m 11s
	6h 9m 45s

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