fix divergence between expectation and reality

Apparently there's a bug in rst-lint, where it can not see below the
paragraph resolution? unclear.

tests/RST219/bad_sub_ref.py

@@ -5,7 +5,12 @@
 so triggers an error:
 
     $ flake8 --select RST RST219/bad_sub_ref.py
-    RST219/bad_sub_ref.py:4:1: RST219 Inline substitution_reference start-string without end-string
+    RST219/bad_sub_ref.py:3:1: RST219 Inline substitution_reference start-string without end-string.
+
+Note that the line number is wrong here, it looks rst-lint is unable
+to understand that paragraphs have multiple lines, so every issue of a
+paragraph gets assigned to the first line. Running ``rst-lint``
+directly against this content has the same issue.
 
 One potential way to avoid this using ``|000...00>``
 instead (wrapping in backticks as a inline literal).