[Gtkradiant] workaround patch: gtkradiant crash on single component jpeg

[reed mideke]

reed mideke wrote:

[...]
> Here's a one line (except for comments) patch that works around the
> problem in stable.  This is tested on win32. 

One final quick follup. Using this patch, if you manipulate a brush
with one of the affected textures, you will get a bunch of warning
messages in the console. Just like you would with a shader that was
missing a texture.
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