Fix handling of glob members in --no-private #2811

Job	Run time
test (stable)	5m 28s
test (1.26)	7m 51s
test (no rustup)	1m 55s
test (beta)	5m 34s
test (1.30)	6m 30s
test (nightly)	5m 43s
test (1.31)	6m 46s
test (nightly, macos-11)	9m 31s
test (1.36)	7m 37s
test (1.39)	7m 28s
test (nightly, windows-2019)	8m 49s
test (1.41)	7m 43s
deny / deny	1m 54s
miri / miri	1m 27s
msrv / msrv	3m 5s
release-dry-run / prepare	6s
tidy / tidy	56s
release-dry-run / build (aarch64-unknown-linux-gnu)	1m 12s
release-dry-run / build (aarch64-unknown-linux-musl)	52s
release-dry-run / build (aarch64-apple-darwin, macos-11)	1m 39s
release-dry-run / build (aarch64-pc-windows-msvc, windows-2019)	2m 37s
release-dry-run / build (x86_64-unknown-linux-gnu)	42s
release-dry-run / build (x86_64-unknown-linux-musl)	45s
release-dry-run / build (x86_64-apple-darwin, macos-11)	1m 39s
release-dry-run / build (x86_64-pc-windows-msvc, windows-2019)	2m 22s
release-dry-run / build (x86_64-unknown-freebsd)	1m 18s
release-dry-run / build (universal-apple-darwin, macos-11)	2m 2s
	1h 43m 31s

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