SoupConverterWrapper: handle truncated responses in general
SoupConverterWrapper: handle truncated responses in general

Rather than just the specific case of "server claims non-0
Content-Length but response is empty", allow the response to be
truncated at any point. Because, you know, the web.

fanc999/libsoup,Distrotech/libsoup,fanc999/libsoup,fanc999/libsoup,fanc999/libsoup,jwendell/libsoup,Distrotech/libsoup,jwendell/libsoup,Distrotech/libsoup,fanc999/libsoup,Distrotech/libsoup,jwendell/libsoup,jwendell/libsoup,Distrotech/libsoup,jwendell/libsoup