Fix stack misalignment for Linux binaries caused by `linux_sigcode' not being a multiple of 4 bytes in size. This solves the recent SIGBUS errors for glibc2.1 configurations.
Fix stack misalignment for Linux binaries caused by `linux_sigcode' not being
a multiple of 4 bytes in size. This solves the recent SIGBUS errors for
glibc2.1 configurations.

Explained by: bde

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