[BUG] remote curl fetches HTML documents

Hi,

I found a bug in the curl family of remote helpers. I've posted a bugfix by assuming as little about the URL that libcurl accepts as possible.

$ git remote-http foo list 0000000000000000000000000000000000000000 html> 0000000000000000000000000000000000000000 <head> 0000000000000000000000000000000000000000 <title>OpenDNS</title> 0000000000000000000000000000000000000000 </head> 0000000000000000000000000000000000000000 </head> 0000000000000000000000000000000000000000 <body id="mainbody" onLoad="testforbanner();" style="margin: 0px;"> <SNIP>

$ git remote-http foo fetch 0000000000000000000000000000000000000000 html>

error: inflate: data stream error (incorrect header check) error: File 0000000000000000000000000000000000000000 (foo/objects/00/00000000000000000000000000000000000000) corrupt error: Unable to find 0000000000000000000000000000000000000000 under foo Cannot obtain needed object 0000000000000000000000000000000000000000 error: Fetch failed.

-- Ram