Fixed missing group st for tape server.

continuousintegration/docker/buildtree_runner/cc7/opt/run/bin/taped.sh

@@ -45,7 +45,8 @@ CTATAPEDSSS="cta_tape_server.keytab"
 #echo '0 u:stage g:tape n:taped+ N:6361736405290319874 c:1481207182 e:0 f:0 k:8e2335f24cf8c7d043b65b3b47758860cbad6691f5775ebd211b5807e1a6ec84' >> /etc/cta/${CTATAPEDSSS}
 echo -n '0 u:daemon g:daemon n:ctaeos+ N:6361884315374059521 c:1481241620 e:0 f:0 k:1a08f769e9c8e0c4c5a7e673247c8561cd23a0e7d8eee75e4a543f2d2dd3fd22' > /etc/cta/${CTATAPEDSSS}
 chmod 600 /etc/cta/${CTATAPEDSSS}
-adduser stage
+groupadd st
+adduser stage -g st
 touch /cta-taped.log
 chown stage /cta-taped.log
 chown stage /etc/cta/${CTATAPEDSSS}