bug#8615: Please make sure v q removes the buffer for JPGs just like it does for other files

[jidanni]

>>>>> "CY" == Chong Yidong <cyd@stupidchicken.com> writes:
CY> Lars Magne Ingebrigtsen <larsi@gnus.org> writes:

>> `view-mode' refuses to switch itself on if the mode is special, and
>> Image mode is apparently special.
>> 
>> Is there any particular reason for `view-mode' to refuse to switch
>> itself on in special modes?

CY> How does it make sense to visit image buffers in view mode?

So then the buffer will disappear when we hit "q"!