Calling tuskar role-list would output blank lines

The role description will sometimes include newlines. If the last
character is a newline this ends up looking like an empty line in
the shell output. Adding a filter for descriptions fixes this.

Change-Id: Ia8586ce3743481fa9618e17340996ace22f80915
Closes-Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1196203

tuskarclient/osc/v2/role.py

@@ -33,6 +33,6 @@ def take_action(self, parsed_args):
 
         return (
             ('uuid', 'name', 'version', 'description'),
-            ((r.uuid, r.name, r.version, r.description)
+            ((r.uuid, r.name, r.version, r.description.strip())
                 for r in roles)
         )

tuskarclient/v2/roles_shell.py

@@ -14,6 +14,8 @@
 
 import sys
 
+import six
+
 import tuskarclient.common.formatting as fmt
 
 
@@ -23,6 +25,7 @@ def do_role_list(tuskar, args, outfile=sys.stdout):
     fields = ['uuid', 'name', 'version', 'description']
 
     formatters = {
+        'description': six.text_type.strip,
     }
 
     fmt.print_list(roles, fields, formatters, outfile=outfile)