http: ReverseProxy should remove Connection: close headers

[bradfitz]

Report:
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in reverseproxy.go near line 80 when you create the forwarded request,
i think you need to do:

outreq.Header.Del("Connection")

otherwise you will get spurious connection death with ErrPersistEOF.

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This might be a regression from http://code.google.com/p/go/source/detail?r=894b438b8564

[bradfitz]

Comment 1:

This issue was closed by revision 7c5d90d.

Status changed to Fixed.

[adg]

Comment 2:

This issue was closed by revision 5abb29d.

[adg]

Comment 3:

This issue was closed by revision f777be8.