git: drm.4: Document drm.debug tunable.

[Rimvydas Jasinskas]

commit ad9250e9b73799c8c51d0fd64fc299b020a309db
Author: zrj <rimvydas.jasinskas at gmail.com>
Date:   Wed May 18 19:40:04 2016 +0300

    drm.4: Document drm.debug tunable.
    
    Applies for run-time hw.dri.debug and hw.drm.debug variables.
    Note: in future releases only one sysctl variable will be kept.
    
    While there, add a hint about video group.

Summary of changes:
 share/man/man4/drm.4 | 40 +++++++++++++++++++++++++++++++++++++---
 1 file changed, 37 insertions(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/ad9250e9b73799c8c51d0fd64fc299b020a309db


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