url.redirect considers keys as case insensitive

[glen]

url.redirect = (
  "^/MSADC.*$" => "http://127.0.0.1/",
  "^/msadc.*$" => "http://127.0.0.1/",
)

produces error "^/msadc.*$" is duplicate key. however the redirect rules are not by default case sensitive.

workaround is to use such ruleset:

url.redirect = (
  "^/(?:MSADC|msadc).*$" => "http://127.0.0.1/",
)

[stbuehler]

Problem by config design - wontfix, sry.