Kuba/ssh/doc fixes/otp 19335 #18018

Job	Run time
Build Erlang/OTP (64-bit)	20m 13s
Event File	3s
Build Erlang/OTP (iOS)	3m 49s
Build Erlang/OTP (Types and Flavors)	7m 40s
Build Erlang/OTP (Windows)	15m 58s
Build Erlang/OTP (macOS)	4m 49s
Build and check documentation	6m 48s
Build Erlang/OTP (32-bit)	10m 16s
Build Erlang/OTP (cross-compile)	15m 4s
Build Erlang/OTP (clang)	5m 48s
Test Erlang/OTP (ssh)	18m 6s
Run static analysis	6m 45s
Release Erlang/OTP	0s
Test Erlang/OTP (system)	8m 18s
	2h 3m 37s

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