fs: detect dot files when using globstar #1553

Job	Run time
Build slim tarball	1m 31s
x86_64-darwin: with shared libraries	1h 25m 41s
aarch64-linux: with shared libraries	25m 34s
aarch64-darwin: with shared libraries	40m 11s
x86_64-linux: with shared libraries	30m 31s
	3h 3m 28s

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