When running on Windows (on possibly on other platforms), the boundary

of the multipart web message is surrounded by quotes.
So instead of:
   Content-Type: multipart/byteranges; boundary=chgs4uxnRx1Nn=x:Rl=E
we see:
   Content-Type: multipart/byteranges; boundary="chgs4uxnRx1Nn=x:Rl=E"
However the calculation of the string to compare the boundary line
to was incorrect (contained the spurrious quotes) and was leading
to an infinite recursion/infinite loop.


git-svn-id: http://root.cern.ch/svn/root/trunk@39516 27541ba8-7e3a-0410-8455-c3a389f83636