Refresh the varnishncsa udplog patch against 3.0.3plus-rc1

Change-Id: I347f309e247f9ed84c7c6e491a0761d20c273cb2
Remove escaping of spaces in header lines

We now use tabs as field separators.

This also removes the need for function str_replace

Change-Id: I1314260debd3040ac432f637d69b3dad2dd969a9