Add documentation for --max_idle_secs=0 and --[no]shutdown_on_low_sys_mem.
Add documentation for --max_idle_secs=0 and --[no]shutdown_on_low_sys_mem.

RELNOTES: None.
PiperOrigin-RevId: 219199552

ulfjack/bazel,twitter-forks/bazel,cushon/bazel,dslomov/bazel,katre/bazel,katre/bazel,ButterflyNetwork/bazel,perezd/bazel,davidzchen/bazel,cushon/bazel,meteorcloudy/bazel,cushon/bazel,cushon/bazel,dslomov/bazel-windows,davidzchen/bazel,cushon/bazel,davidzchen/bazel,perezd/bazel,twitter-forks/bazel,bazelbuild/bazel,davidzchen/bazel,ButterflyNetwork/bazel,aehlig/bazel,akira-baruah/bazel,werkt/bazel,aehlig/bazel,ulfjack/bazel,werkt/bazel,ulfjack/bazel,perezd/bazel,meteorcloudy/bazel,bazelbuild/bazel,perezd/bazel,katre/bazel,meteorcloudy/bazel,perezd/bazel,safarmer/bazel,akira-baruah/bazel,dslomov/bazel-windows,meteorcloudy/bazel,ulfjack/bazel,ulfjack/bazel,aehlig/bazel,aehlig/bazel,katre/bazel,dslomov/bazel,akira-baruah/bazel,dslomov/bazel-windows,werkt/bazel,perezd/bazel,twitter-forks/bazel,cushon/bazel,ButterflyNetwork/bazel,werkt/bazel,bazelbuild/bazel,bazelbuild/bazel,dslomov/bazel-windows,akira-baruah/bazel,akira-baruah/bazel,meteorcloudy/bazel,ButterflyNetwork/bazel,dslomov/bazel,ulfjack/bazel,davidzchen/bazel,aehlig/bazel,safarmer/bazel,twitter-forks/bazel,dslomov/bazel,dslomov/bazel,meteorcloudy/bazel,dslomov/bazel,safarmer/bazel,ButterflyNetwork/bazel,twitter-forks/bazel,bazelbuild/bazel,twitter-forks/bazel,katre/bazel,dslomov/bazel,aehlig/bazel,safarmer/bazel,davidzchen/bazel,katre/bazel,dslomov/bazel-windows,akira-baruah/bazel,aehlig/bazel,meteorcloudy/bazel,safarmer/bazel,werkt/bazel,ulfjack/bazel,werkt/bazel,davidzchen/bazel,perezd/bazel,dslomov/bazel-windows,bazelbuild/bazel,twitter-forks/bazel,safarmer/bazel,ButterflyNetwork/bazel