v.external: dsn -> input

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@63329 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/gis/renamed_options

@@ -446,6 +446,8 @@ v.db.join|scolumns:subset_columns
 v.db.select|vs:vertical separator
 # v.db.update
 v.db.update|qcolumn:query_column
+# v.external
+v.external|dsn:input
 # v.extrude
 v.extrude|hcolumn:height_column
 # v.in.ogr