Fix `pytrace=False` and `--tb=line` reports `None` (#10905)

Closes #10831.

This fixes a small bug where running tests that contained
`pytest.fail(pytrace=False)` with the `--tb=line` flag set results in
 an output of "None" in the Failures section of the output, and adds
 a test to ensure the behavior is correct.

AUTHORS

@@ -13,6 +13,7 @@ Ahn Ki-Wook
 Akiomi Kamakura
 Alan Velasco
 Alessio Izzo
+Alex Jones
 Alexander Johnson
 Alexander King
 Alexei Kozlenok

changelog/10831.bugfix.rst

@@ -0,0 +1 @@
+Terminal Reporting: Fixed bug when running in ``--tb=line`` mode where ``pytest.fail(pytrace=False)`` tests report ``None``.

src/_pytest/_code/code.py

@@ -647,7 +647,7 @@ class ExceptionInfo(Generic[E]):
             Ignored if ``style=="native"``.
 
         :param str style:
-            long|short|no|native|value traceback style.
+            long|short|line|no|native|value traceback style.
 
         :param bool abspath:
             If paths should be changed to absolute or left unchanged.
@@ -977,9 +977,7 @@ class FormattedExcinfo:
                     )
                 else:
                     reprtraceback = self.repr_traceback(excinfo_)
-                reprcrash: Optional[ReprFileLocation] = (
+                reprcrash = excinfo_._getreprcrash()
-                    excinfo_._getreprcrash() if self.style != "value" else None
-                )
             else:
                 # Fallback to native repr if the exception doesn't have a traceback:
                 # ExceptionInfo objects require a full traceback to work.

testing/test_terminal.py

@@ -1539,6 +1539,19 @@ class TestGenericReporting:
         s = result.stdout.str()
         assert "def test_func2" not in s
 
+    def test_tb_crashline_pytrace_false(self, pytester: Pytester, option) -> None:
+        p = pytester.makepyfile(
+            """
+            import pytest
+            def test_func1():
+                pytest.fail('test_func1', pytrace=False)
+        """
+        )
+        result = pytester.runpytest("--tb=line")
+        result.stdout.str()
+        bn = p.name
+        result.stdout.fnmatch_lines(["*%s:3: Failed: test_func1" % bn])
+
     def test_pytest_report_header(self, pytester: Pytester, option) -> None:
         pytester.makeconftest(
             """