context: Fix rpmdb file monitor with / installs
context: Fix rpmdb file monitor with / installs

Commit c50214d43a20941b2a950dd04d822fdc33a137d0 added a guard that was
supposed to avoid firing the rpmdb monitor signals when using a
non-default install root, but got the guard condition backwards which
prevented it working with regular / installs.

Fixing this makes PackageKit properly invalidate its internal caches
when an external program, such as dnf, touches the rpmdb.

hughsie/libhif,juhp/libhif,rpm-software-management/libhif,edynox/libdnf,edynox/libdnf,edynox/libdnf,Conan-Kudo/libhif,juhp/libhif,rpm-software-management/libhif,hughsie/libhif,cgwalters/libhif,hughsie/libhif,Conan-Kudo/libhif,cgwalters/libhif,cgwalters/libhif,edynox/libdnf,Conan-Kudo/libhif,rpm-software-management/libdnf,rpm-software-management/libhif,rpm-software-management/libdnf,rpm-software-management/libdnf,hughsie/libhif,rpm-software-management/libdnf,Conan-Kudo/libhif,rpm-software-management/libhif,cgwalters/libhif