Fix double brackets

Signed-off-by: David Galloway <[email protected]>

ceph-releases/ALL/centos/daemon-base/__DOCKERFILE_INSTALL__

@@ -8,7 +8,7 @@ bash -c ' \
       echo "baseurl=https://buildlogs.centos.org/centos/\$releasever-stream/storage/\$basearch/nfsganesha-5/" >> /etc/yum.repos.d/ganesha.repo ; \
       echo "gpgcheck=0" >> /etc/yum.repos.d/ganesha.repo ; \
       echo "enabled=1" >> /etc/yum.repos.d/ganesha.repo  ; \
-    elif [[ "${{CEPH_VERSION}}" == quincy ]]; then \
+    elif [[ "${CEPH_VERSION}" == quincy ]]; then \
       echo "[ganesha]" > /etc/yum.repos.d/ganesha.repo ; \
       echo "name=ganesha" >> /etc/yum.repos.d/ganesha.repo ; \
       echo "baseurl=https://mirror.stream.centos.org/SIGs/\$releasever-stream/storage/\$basearch/nfsganesha-4/" >> /etc/yum.repos.d/ganesha.repo ; \