Fix shredding errors/warnings reported by rstcheck. (#189)

changelogs/fragments/188-rstcheck.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - "When linting found RST problems with rstcheck, the error messages were reduced to a single letter (https://github.com/ansible-community/antsibull-changelog/pull/188)."

src/antsibull_changelog/fragment.py

@@ -374,12 +374,12 @@ def _lint_lines(
                 results = ChangelogFragmentLinter._check_content(
                     line, fragment.fragment_format, fragment.path
                 )
-                errors += [(fragment.path, 0, 0, result[2]) for result in results]
+                errors += [(fragment.path, 0, 0, result) for result in results]
         elif isinstance(lines, str):
             results = ChangelogFragmentLinter._check_content(
                 lines, fragment.fragment_format, fragment.path
             )
-            errors += [(fragment.path, 0, 0, result[2]) for result in results]
+            errors += [(fragment.path, 0, 0, result) for result in results]
 
     def lint(self, fragment: ChangelogFragment) -> list[tuple[str, int, int, str]]:
         """

tests/functional/test_changelog_basic_lint.py

@@ -91,13 +91,15 @@ def test_changelog_fragment_lint_broken(  # pylint: disable=redefined-outer-name
             ],
         },
     )
+    collection_changelog.add_fragment_line("bad-rst.yml", "bugfixes", ["This is *foo"])
 
     # Lint fragments
     rc, stdout, stderr = collection_changelog.run_tool_w_output("lint", [])
     assert rc == C.RC_INVALID_FRAGMENT
     assert (
         stdout
         == r"""
+changelogs/fragments/bad-rst.yml:0:0: (WARNING/2) Inline emphasis start-string without end-string.
 changelogs/fragments/int-instead-of-list.yml:0:0: section "bugfixes" must be type list not int
 changelogs/fragments/int-instead-of-string.yml:0:0: section "release_summary" must be type str not int
 changelogs/fragments/invalid-add-obj.yaml:0:0: section "add moo.role"'s name must be of format "add (object|plugin).(type)"