Fix bug 2058: Update lxd-credentials file

Change-Id: I41b90c4010bf1dfe553a3d81bddf7bcef5f08b35
Signed-off-by: David Garcia <david.garcia@canonical.com>
diff --git a/installers/charmed_install.sh b/installers/charmed_install.sh
index 4cc1cfb..df35e7d 100755
--- a/installers/charmed_install.sh
+++ b/installers/charmed_install.sh
@@ -189,21 +189,14 @@
       ssl-hostname-verification: false
 EOF
         openssl req -nodes -new -x509 -keyout ~/.osm/client.key -out ~/.osm/client.crt -days 365 -subj "/C=FR/ST=Nice/L=Nice/O=ETSI/OU=OSM/CN=osm.etsi.org"
-        local server_cert=`cat /var/snap/lxd/common/lxd/server.crt | sed 's/^/        /'`
-        local client_cert=`cat ~/.osm/client.crt | sed 's/^/        /'`
-        local client_key=`cat ~/.osm/client.key | sed 's/^/        /'`
-
         cat << EOF > $LXD_CREDENTIALS
 credentials:
   lxd-cloud:
     lxd-cloud:
       auth-type: certificate
-      server-cert: |
-$server_cert
-      client-cert: |
-$client_cert
-      client-key: |
-$client_key
+      server-cert: /var/snap/lxd/common/lxd/server.crt
+      client-cert: ~/.osm/client.crt
+      client-key: ~/.osm/client.key
 EOF
         lxc config trust add local: ~/.osm/client.crt
     fi