Test: restconf CN variable, strip curl newline

Fixed a few compile warnings

test/lib.sh

@@ -105,6 +105,9 @@ else
     netcat=
 fi
 
+# SSL serv cert common name XXX should use DNS resolve
+: ${SSLCN:="localhost"}
+
 # Options passed to curl calls
 # -s : silent
 # -S : show error
@@ -1104,7 +1107,7 @@ prompt = no
 distinguished_name = dn
 req_extensions = ext
 [dn]
-CN = www.clicon.org # localhost
+CN = ${SSLCN} # localhost
 emailAddress = olof@hagsand.se
 O = Clixon
 L = Stockholm