Fix the crash issue for NPPM_GETNATIVELANGFILENAME #701

Job	Run time
before_build	22s
build_windows_cmake (Release, x64, amd64)	4m 42s
build_windows_msys2 (Release, x86_64)	5m 15s
build_windows (Release, x64)	4m 22s
build_windows_msys2 (Release, i686)	4m 50s
build_windows (Release, Win32)	3m 0s
build_windows_msys2 (Debug, x86_64)	4m 38s
build_windows (Release, ARM64)	4m 27s
build_windows_msys2 (Debug, i686)	3m 50s
build_windows (Debug, x64)	5m 50s
build_windows (Debug, Win32)	4m 11s
build_windows (Debug, ARM64)	3m 5s
	48m 32s

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