Fix the definition of soup_message_is_keepalive() for HTTP/1.0
Fix the definition of soup_message_is_keepalive() for HTTP/1.0

Fixes a problem where some requests would reach 100% but never "finish"

fanc999/libsoup,fanc999/libsoup,fanc999/libsoup,Distrotech/libsoup,ahmedammar/platform_external_gst_libsoup,Distrotech/libsoup,Distrotech/libsoup,fanc999/libsoup,jwendell/libsoup,Distrotech/libsoup,ahmedammar/platform_external_gst_libsoup,jwendell/libsoup,jwendell/libsoup,fanc999/libsoup,jwendell/libsoup,Distrotech/libsoup,jwendell/libsoup,ahmedammar/platform_external_gst_libsoup