ovirt-resource: 'error' -> 'err' in doc comment

ovirt-resource.c:1049: Warning: GoVirt: ovirt_resource_delete_finish:
unknown parameter 'error' in documentation comment, should be 'err'

https://bugzilla.gnome.org/show_bug.cgi?id=740684
ovirt-options: Do not expand tilde on Windows

As Windows doesn't have "~" (as the value of $HOME) the code used to
expand tilde uses non-portable functions from pwd.h, what causes a break
when building libgovirt using MinGW

https://bugzilla.gnome.org/show_bug.cgi?id=740685