Excessive tar Warnings

[jasonwalker80]

Presumably on this line:

qc-analysis-pipeline/tasks/Qc.wdl

Line 302 in cb05da7

tar -zxf ~{ref_cache}

I'm seeing thousands of warning messages like:

tar: Ignoring unknown extended header keyword 'SCHILY.dev'
tar: Ignoring unknown extended header keyword 'SCHILY.ino'
tar: Ignoring unknown extended header keyword 'SCHILY.nlink'
tar: Ignoring unknown extended header keyword 'LIBARCHIVE.creationtime'

This can be reproduced using the NA12878 CRAM in the (soon to be a PR) SingleSampleQC.json:
gs://broad-public-datasets/NA12878/NA12878.cram

The culprit is likely the ref_cache tar archive:
gs://gcp-public-data--broad-references/hg38/v0/Homo_sapiens_assembly38.ref_cache.tar.gz

[jasonwalker80]

@aofarrel pointed out this:
nodejs/node#22805