Fix mtime setting
Fix mtime setting

Thinko in mtime setting patch, spotted by Nikias.

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