The driver name "nouveau" will cause false-positive result in compiz check

[Po-Hsu Lin]

Found this glitch during this SRU cycle,

Currently we are parsing this ":\(\s\+\)no" pattern for compiz support test.
If the system is using the nouveau driver, this test will fail due to the ": no" pattern
found in "OpenGL vendor string: nouveau"

e.g. the following output will cause this problem

OpenGL vendor string: nouveau
OpenGL renderer string: Gallium 0.4 on NVA8
OpenGL version string: 3.0 Mesa 9.2.1

Not software rendered: yes
Not blacklisted: yes
GLX fbconfig: yes
GLX texture from pixmap: yes
GL npot or rect textures: yes

Compiz supported: yes