shell: Group readdir64/dirent64 with open64

The test for open64 is separate from stat64 for macOS.  However,
the newly introduced tests for readdir64/dirent64 should be grouped
with open64 instead of stat64 as otherwise they cause similar build
failures.

Reported-by: Martijn Dekker <martijn@inlv.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
1 file changed