Version the sigaction(2) libc wrapper. The new version uses the "siginfo"
trampoline exclusively, thus relegating "sigcontext"-style handlers (which
have not been documented for many years now) to t

Version the sigaction(2) libc wrapper. The new version uses the "siginfo"
trampoline exclusively, thus relegating "sigcontext"-style handlers (which
have not been documented for many years now) to the dustbin of the compat
library.

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