i386/sigaction.c: slightly more readable form of [rt_]sigreturn definitions
i386/sigaction.c: slightly more readable form of [rt_]sigreturn definitions

No code changes

Signed-off-by: Denys Vlasenko <50fbbd36fe0f9c8261d4a3c762c8c29ffb35e48f@redhat.com>

joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc