remove multiline

tests/conftest.py

@@ -144,7 +144,7 @@ def sample_text_long():
 
 @pytest.fixture
 def sample_text_multiline():
-    """Multiline sample text for testing"""
+    """Sample text containing newlines for testing"""
     return "Line 1\nLine 2\nLine 3\nLine 4"
 
 
@@ -259,4 +259,4 @@ def mock_props():
     props.normal_map_strength = 1.0
     props.normal_map_blur_radius = 0
     props.normal_map_invert = False
-    return props
+    return props