Auto-sync with upstream branch master
    
    Upstream commit: 6de743a4e31a94e3d022e64a90c9082290a5a573
    
    - x86_64: Fix code formatting of vectorized math functions
    - pthread: Do not overwrite tests-time64
    - x86_64: Fix svml_s_acosf16_core_avx512.S code formatting
    - i386: Remove libc-do-syscall from sysdep-dl-routines [BZ #28936]
    - linux/i386: remove dead assignment of sysdep-dl-routines