Merge pull request #2481 from tardyp/fixdoc

fix broken image in doc

Author: pombredanne

docs/source/cli-reference/output-format.rst

@@ -354,7 +354,7 @@ Comparing Different ``json`` Output Formats
     Here the file is structured as a dictionary of named properties and classes using W3C's
     `RDF Technology <https://www.w3.org/RDF/>`_.
 
-    ... figure:: data/output_spdx_rdf1.png
+    .. figure:: data/output_spdx_rdf1.png
 
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