Append a newline to error messages with source code (#70)

Author: felix-hilden

docs/src/release_notes.rst

@@ -12,6 +12,7 @@ Unreleased
 ----------
 - Declare CSS class as public API (:issue:`3`)
 - Add ability to link to subclass documentation (:issue:`68`)
+- Append a newline to error messages with source code (:issue:`70`)
 
 0.6.0 (2021-11-21)
 ------------------

src/sphinx_codeautolink/extension/block.py

@@ -200,7 +200,7 @@ def parse_source(
                 f'Parsed source in `{language}` block:',
                 show_source,
             ])
-            raise ParsingError(msg) from e
+            raise ParsingError(msg + '\n') from e
 
         if prefaces or self.concat_sources or self.global_preface:
             concat_lens = [s.count('\n') + 1 for s in self.concat_sources]