change config separator to whitespace

docs/source/plugins.rst

@@ -21,12 +21,12 @@ Additional feature is that some paths from buildroot can be left out from
 tarball. Feature can be configured via
 `/etc/kojid/plugins/save_failed_tree.conf` file. Currently only field
 filters.paths is used and it consists of globs (standard python's fnmatch is
-used) separated by ':'.
+used) separated by whitespaces.
 
 .. code-block:: ini
 
   [filters]
-  paths = /etc/*.keytab:/tmp/secret_data
+  paths = /etc/*.keytab /tmp/secret_data
 
 .. warning::
   For security reasons, currently all ``/tmp/krb5cc*`` and ``/etc/*.keytab``

plugins/builder/save_failed_tree.conf

@@ -2,4 +2,4 @@
 volume = DEFAULT
 
 [filters]
-paths = */tmp/krb5cc:*/etc/*.keytab
+paths = */tmp/krb5cc */etc/*.keytab

plugins/builder/save_failed_tree.py

@@ -27,7 +27,7 @@ def read_config():
         'volume': None,
     }
     if cp.has_option('filters', 'paths'):
-        config['path_filters'] = cp.get('filters', 'paths').split(':')
+        config['path_filters'] = cp.get('filters', 'paths').split()
     if cp.has_option('general', 'volume'):
         config['volume'] = cp.get('general', 'volume').strip()