[BZ#769368] Segfault on null input
Submitted by Dave Jarvis
Link to original bug (#769368)
Description
Replicate
$ rsvg-convert ^D (rsvg-convert:12064): librsvg-CRITICAL **: rsvg_handle_set_size_callback: assertion 'handle != NULL' failed Segmentation fault (core dumped)
Where "^D" means "type control-d" to signify end of file.