Replaced a lot of dubious string formatting code with GLib function
Replaced a lot of dubious string formatting code with GLib function

g_string_append_vprintf has become available since Glib 2.14

freedesktop-unofficial-mirror/telepathy__telepathy-rakia,freedesktop-unofficial-mirror/telepathy__telepathy-rakia,freedesktop-unofficial-mirror/telepathy__telepathy-rakia