clang -cc1: Allow -triple= as an alias for -triple, -code-compiletion-at= as an alias for -code-completion-at, and spell "-std=" option correctly.
clang -cc1: Allow -triple= as an alias for -triple, -code-compiletion-at= as an alias for -code-completion-at, and spell "-std=" option correctly.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@90068 91177308-0d34-0410-b5e6-96231b3b80d8

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