Add render group to Docker container run line

Signed-off-by: James P. Ketrenos <james.p.ketrenos@intel.com>

scripts/test-image.sh

@@ -26,16 +26,20 @@ function fail {
 }
 
 VIDEO=$(getent group video | sed -E 's,^video:[^:]*:([^:]*):.*$,\1,')
+RENDER=$(getent group render | sed -E 's,^render:[^:]*:([^:]*):.*$,\1,')
 
 cat << EOF
 
-Running test with video GID as ${VIDEO}
+Running test with:
+
+video group : ${VIDEO}
+render group: ${RENDER}
 
 -------------------------------------------------------------------------------
 
 EOF
 
-echo -e "Downloading test content: "
+echo -n "Downloading test content: "
 mkdir $(pwd)/media
 wget -q -O $(pwd)/media/AUD_MW_E.264 \
   https://fate-suite.libav.org/h264-conformance/AUD_MW_E.264 ||
@@ -43,7 +47,9 @@ wget -q -O $(pwd)/media/AUD_MW_E.264 \
 chmod -R 777 $(pwd)/media || fail "Unable to set permissions"
 echo "done"
 
-docker run --group-add ${VIDEO} \
+docker run \
+  --group-add ${VIDEO} \
+  --group-add ${RENDER} \
   --rm \
   --device=/dev/dri \
   -e QSV_DEVICE=${QSV_DEVICE:-/dev/dri/renderD128} \