bin/meson-cmd-extract: Also handle cross and native files
Native file support in command line serialization isn't present in meson 0.49, but will be for 0.49.1 and 0.50
This support was missed in the initial patch
Native file support in command line serialization isn't present in meson 0.49, but will be for 0.49.1 and 0.50
This support was missed in the initial patch