BUG/MINOR: http: url32+src should use the big endian version of url32

This is similar to the commit 5ad6e1dc ("BUG/MINOR: http: base32+src
should use the big endian version of base32"). Now we convert url32 to big
endian when building the binary block.

This patch needs to be backported to 1.6 and 1.5.
1 file changed