interpreter: fix configure_file() message on empty configuration_data() [skip ci]
The 'copy' kwarg will appear in the upcoming 0.47 release, not 0.46.
@@ -3212,7 +3212,7 @@ root and issuing %s.
mlog.warning('Got an empty configuration_data() object: '
'optimizing copy automatically; if you want to '
'copy a file to the build dir, use the \'copy:\' '
- 'keyword argument added in 0.46.0', location=node)
+ 'keyword argument added in 0.47.0', location=node)
# Perform the appropriate action
if 'configuration' in kwargs:
conf = kwargs['configuration']
