Fix leaked fd in disconnected compress.mod

Reported by:	cppcheck
Fix potential fd leak in transer.mod dcc sending

Reported by:	cppcheck
Fix potential NULL dereference in laston_gotshare

Reported by:	cppcheck
Merge branch 'maint'

* maint:
  Fix potential NULL dereference in laston_gotshare
  Fix potential fd leak in transer.mod dcc sending
  Fix leaked fd in disconnected compress.mod