447d75c - Auto-sync with upstream branch master

Authored and Committed by fweimer 5 years ago
    - Auto-sync with upstream branch master
    
    Upstream commit: db9a8ad4ff3fc58e3773a9a4d0cabe3c1bc9c94c
    
    - gethostid: Missing NULL check for gethostbyname_r result (#1631338)
    - stdlib/tst-setcontext9 test suite failure (#1623519)
    
        
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