[config] Replaced sed with perl so that we're platform independent again. This commit directly refers to RT#45437.  It turns out that sed was used in several locations, and so I changed those as well.
[config] Replaced sed with perl so that we're platform independent again.
This commit directly refers to RT#45437.  It turns out that sed was used in
several locations, and so I changed those as well.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@21274 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

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