Fix a leak in gvfsfusedaemon.c
Fix a leak in gvfsfusedaemon.c

This ref leak was reported by clang. Bug 594828.

philipl/gvfs,xkahn/gvfs-cmis,philipl/gvfs,halfline/gvfs,halfline/gvfs,cpatulea/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,cpatulea/gvfs,halfline/gvfs,xkahn/gvfs-cmis,gicmo/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,gicmo/gvfs,philipl/gvfs