Account for col_offset change in Python 3.12

It's now closer to being correct.

Author: domdfcoding

tests/flake8_strftime_test.py

@@ -1,5 +1,6 @@
 # stdlib
 import ast
+import sys
 from typing import Set
 
 # 3rd party
@@ -13,6 +14,7 @@ def results(s: str) -> Set[str]:
 	return {"{}:{}: {}".format(*r) for r in Plugin(ast.parse(s)).run()}
 
 
+@pytest.mark.skipif(sys.version_info >= (3, 12), reason="Line numbers are offset on earlier versions")
 def test_linux_specific():
 	assert results('print(f"{now:%Y/%-m/%-d %H:%M}")') == {  # noqa: STRFTIME001
 		"1:9: STRFTIME001 Linux-specific strftime code used.",
@@ -25,6 +27,20 @@ def test_linux_specific():
 		}
 
 
+@pytest.mark.skipif(sys.version_info < (3, 12), reason="Line numbers are offset on earlier versions")
+def test_linux_specific_312():
+	assert results('print(f"{now:%Y/%-m/%-d %H:%M}")') == {  # noqa: STRFTIME001
+		"1:16: STRFTIME001 Linux-specific strftime code used.",
+		"1:20: STRFTIME001 Linux-specific strftime code used.",
+		}
+
+	assert results('print(now.strftime("%Y/%-m/%-d %H:%M"))') == {  # noqa: STRFTIME001
+		"1:22: STRFTIME001 Linux-specific strftime code used.",
+		"1:26: STRFTIME001 Linux-specific strftime code used.",
+		}
+
+
+@pytest.mark.skipif(sys.version_info >= (3, 12), reason="Line numbers are offset on earlier versions")
 def test_windows_specific():
 	assert results('print(f"{now:%Y/%#m/%#d %H:%M}")') == {  # noqa: STRFTIME002
 		"1:9: STRFTIME002 Windows-specific strftime code used.",
@@ -37,6 +53,19 @@ def test_windows_specific():
 		}
 
 
+@pytest.mark.skipif(sys.version_info < (3, 12), reason="Line numbers are offset on earlier versions")
+def test_windows_specific_312():
+	assert results('print(f"{now:%Y/%#m/%#d %H:%M}")') == {  # noqa: STRFTIME002
+		"1:16: STRFTIME002 Windows-specific strftime code used.",
+		"1:20: STRFTIME002 Windows-specific strftime code used.",
+		}
+
+	assert results('print(now.strftime("%Y/%#m/%#d %H:%M"))') == {  # noqa: STRFTIME002
+		"1:22: STRFTIME002 Windows-specific strftime code used.",
+		"1:26: STRFTIME002 Windows-specific strftime code used.",
+		}
+
+
 @pytest.mark.parametrize(
 		"source",
 		[