gossip_load: fix message loss handling (regression of r6829)
gossip_load: fix message loss handling (regression of r6829)

Fixes a bug due to swapped variables affecting the correct handling of message
loss in the gossip_load module.
tectronics/scalaris,tectronics/scalaris,seyyed/scalaris,digshock/scalaris,tectronics/scalaris,digshock/scalaris,seyyed/scalaris,digshock/scalaris,digshock/scalaris,seyyed/scalaris,seyyed/scalaris,tectronics/scalaris,digshock/scalaris,seyyed/scalaris,digshock/scalaris,digshock/scalaris,tectronics/scalaris,tectronics/scalaris,seyyed/scalaris,tectronics/scalaris,seyyed/scalaris