diff --git a/sphinx/application.py b/sphinx/application.py
index 7e9600b16d5..a994e4bd57b 100644
--- a/sphinx/application.py
+++ b/sphinx/application.py
@@ -392,7 +392,8 @@ def build(self, force_all: bool = False, filenames: list[str] | None = None) ->
         elif self._warncount == 1:
             if self._warning_is_error:
                 self.statuscode = 1
-                msg = __('build finished with problems, %s warning (with warnings treated as errors).')
+                msg = __('build finished with problems, %s warning '
+                         '(with warnings treated as errors).')
             elif self.statuscode != 0:
                 msg = __('build finished with problems, %s warning.')
             else:
@@ -401,7 +402,8 @@ def build(self, force_all: bool = False, filenames: list[str] | None = None) ->
         else:
             if self._warning_is_error:
                 self.statuscode = 1
-                msg = __('build finished with problems, %s warnings (with warnings treated as errors).')
+                msg = __('build finished with problems, %s warnings '
+                         '(with warnings treated as errors).')
             elif self.statuscode != 0:
                 msg = __('build finished with problems, %s warnings.')
             else:
diff --git a/tests/test_util/test_util_logging.py b/tests/test_util/test_util_logging.py
index bc7bf3e1b2c..0b40d50977a 100644
--- a/tests/test_util/test_util_logging.py
+++ b/tests/test_util/test_util_logging.py
@@ -7,7 +7,6 @@
 import pytest
 from docutils import nodes
 
-from sphinx.errors import SphinxWarning
 from sphinx.util import logging, osutil
 from sphinx.util.console import colorize, strip_colors
 from sphinx.util.logging import is_suppressed_warning, prefixed_warnings