`GPU_shader_get_uniform_block` is marked as deprecated and the value returned does not match what `GPU_uniformbuf_bind` expects. Also, small typo fix in python error message. Differential Revision: https://developer.blender.org/D14638
`GPU_shader_get_uniform_block` is marked as deprecated and the value returned does not match what `GPU_uniformbuf_bind` expects. Also, small typo fix in python error message. Differential Revision: https://developer.blender.org/D14638