[Jpeg] Don't complain if the stream Length can't be read.
[Jpeg] Don't complain if the stream Length can't be read.

https://bugzilla.gnome.org/show_bug.cgi?id=624671

Clancey/taglib-sharp,punker76/taglib-sharp,punker76/taglib-sharp,archrival/taglib-sharp,CamargoR/taglib-sharp,Clancey/taglib-sharp,hwahrmann/taglib-sharp,mono/taglib-sharp,hwahrmann/taglib-sharp,CamargoR/taglib-sharp,Clancey/taglib-sharp,archrival/taglib-sharp