strbuf: Keep original buffer when dumping shader
This is better so we can dump same shader multiple times.
Change-Id: I0fa09cc67edf9d99883f3b67ebffd3f63cc6687a
This is better so we can dump same shader multiple times.
Change-Id: I0fa09cc67edf9d99883f3b67ebffd3f63cc6687a