fix handling of multiple Content-type headers This can happen if an error happens while sending application/mercurial-0.1 content. The error page will be sent resulting (for at least lighttpd) in the following headers: Content-type: application/mercurial-0.1 Content-type: text/html which result in req.proto = 'application/mercurial-0.1, text/html' fix issue344

adding base
abort: cannot delete applied patch c
Now at: b
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Now at: a
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1 New patch: a
0 base
abort: cannot delete revision 3 above applied patches
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4 New patch: f
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1 New patch: a
0 base