lib: Use -export-symbol-regex
lib: Use -export-symbol-regex

Just a small step towards being a better library.

sujitfulse/ostree,leandrosansilva/ostree,resin-io/ostree,resin-io/ostree,gatispaeglis/ostree,leandrosansilva/ostree,gatispaeglis/ostree,sujitfulse/ostree,gatispaeglis/ostree,GNOME/ostree,GNOME/ostree,gatispaeglis/ostree,GNOME/ostree,leandrosansilva/ostree,leandrosansilva/ostree,resin-io/ostree,leandrosansilva/ostree,gatispaeglis/ostree,resin-io/ostree,gatispaeglis/ostree,sujitfulse/ostree,sujitfulse/ostree,sujitfulse/ostree,resin-io/ostree,GNOME/ostree,GNOME/ostree