Missing Xcode install
"""
..............................................................................F.........................................................................
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PACKAGE: infra/monitoring/sysmon/system
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FAIL infra/monitoring/sysmon/system [build failed]
# infra/monitoring/sysmon/system.test
/b/swarm_slave/w/ir/cache/infra_gclient_with_go/golang/go/pkg/tool/darwin_amd64/link: running clang failed: exit status 1
xcode-select: note: no developer tools were found at '/Applications/Xcode.app', requesting install. Choose an option in the dialog to download the command line developer tools.
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step returned non-zero exit code: 1
0.00s since last line 2018-09-28 5:20:16 PM (EDT) 2018-09-28 2:20:16 PM (MTV) 2018-09-28 9:20:16 PM (UTC)
"""
Comment 1 by erikc...@chromium.org
, Sep 28