Fix typo

climix/etc/metadata.yml

@@ -116,7 +116,7 @@ indices:
           units: mm day-1
         condition:
           kind: operator
-          operator: <
+          operator: '<'
         reducer:
           kind: reducer
           reducer: max

climix/main.py

@@ -45,7 +45,7 @@ def parse_args():
                         help='output filename')
     parser.add_argument('-x', '--index', action='append',
                         required=True, metavar='INDEX', dest='indices',
-                        help='the index to calculcate (currently only cdd)')
+                        help='the index to calculcate')
     parser.add_argument('datafiles', nargs='+', metavar="DATAFILE",
                         help='the input data files')
     return parser.parse_args()