Improve exclusion syntax to match exact files (#209)

test/F823.py

@@ -0,0 +1,27 @@
+my_dict = {}
+my_var = 0
+
+
+def foo():
+    my_var += 1
+
+
+def bar():
+    global my_var
+    my_var += 1
+
+
+def baz():
+    global my_var
+    global my_dict
+    my_dict[my_var] += 1
+
+
+def dec(x):
+    return x
+
+
+@dec
+def f():
+    dec = 1
+    return dec

test/directory/F706.py

@@ -0,0 +1,9 @@
+def f() -> int:
+    return 1
+
+
+class Foo:
+    return 2
+
+
+return 3

test/directory/F707.py

@@ -0,0 +1,9 @@
+def f() -> int:
+    return 1
+
+
+class Foo:
+    return 2
+
+
+return 3

test/ignore.py

@@ -0,0 +1,9 @@
+def f() -> int:
+    return 1
+
+
+class Foo:
+    return 2
+
+
+return 3

test/pyproject.toml

@@ -0,0 +1,3 @@
+[tool.ruff]
+line-length = 88
+extend-exclude = ["./directory/*"]