Document special warning flags in the man page
Document special warning flags in the man page

- added --[no-]warn-special and --[no-]warn-tuple-iteration

- changed text for --[no-]warn-domain-literal



git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@21234 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

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