Fix incorrect specification of directory contents in read dir resp [A… #1380

Job	Run time
Bazel	2m 47s
macOS	15m 9s
Ubuntu 18.04 (Build: Debug, Compilers: gcc-6/g++-6, Shared Library: true)	6m 35s
Test Big Endian	4m 46s
Ubuntu 18.04 (Build: Debug, Compilers: clang-6.0/clang++-6.0, Shared Library: true)	6m 27s
Windows 2019 (Generator: MinGW Makefiles, Shared Library: true)	11m 16s
Ubuntu 18.04 (Build: Debug, Compilers: clang-6.0/clang++-6.0, Shared Library: false)	6m 45s
Windows 2019 (Generator: MinGW Makefiles, Shared Library: false)	11m 17s
Ubuntu 18.04 (Build: Release, Compilers: gcc-6/g++-6, Shared Library: true)	8m 19s
Windows 2019 (Generator: Visual Studio 16 2019, Shared Library: true)	5m 23s
Ubuntu 18.04 (Build: Release, Compilers: gcc-6/g++-6, Shared Library: false)	8m 26s
Windows 2019 (Generator: Visual Studio 16 2019, Shared Library: false)	4m 44s
Ubuntu 18.04 (Build: Release, Compilers: clang-6.0/clang++-6.0, Shared Library: true)	7m 41s
Ubuntu 18.04 (Build: Release, Compilers: clang-6.0/clang++-6.0, Shared Library: false)	7m 48s
	1h 47m 23s

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