fixup! CMS_add1_signer.pod: add missing info on CMS_SignerInfo_sign()… #1262

Job	Run time
run-checker (enable-asan enable-ubsan no-shared no-asm -DOPENSSL_SMALL_FOOTPRINT)	17m 44s
run-checker (no-ct)	7m 49s
run-checker (no-dso)	7m 7s
run-checker (no-dynamic-engine)	7m 7s
run-checker (no-engine no-shared)	7m 10s
run-checker (no-err)	7m 20s
run-checker (no-filenames)	7m 29s
run-checker (enable-ubsan no-asm -DOPENSSL_SMALL_FOOTPRINT -fno-sanitize=alignment)	12m 17s
run-checker (no-module)	7m 20s
run-checker (no-ocsp)	7m 25s
run-checker (no-pinshared)	7m 45s
run-checker (no-srp)	7m 11s
run-checker (no-srtp)	7m 29s
run-checker (no-ts)	7m 31s
run-checker (enable-weak-ssl-ciphers)	7m 29s
run-checker (enable-zlib)	7m 20s
	2h 13m 33s

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