Update some more obsolete values of the number of executed and filtered tests

Author: martin-g

src/testing/unit_testing.md

@@ -179,7 +179,7 @@ $ cargo test test_any_panic
 running 1 test
 test tests::test_any_panic ... ok
 
-test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 2 filtered out
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 3 filtered out
 
    Doc-tests tmp-test-should-panic
 
@@ -193,11 +193,12 @@ tests that should be run.
 
 ```shell
 $ cargo test panic
-running 2 tests
+running 3 tests
 test tests::test_any_panic ... ok
 test tests::test_specific_panic ... ok
+test tests::test_specific_panic_shorthand ... ok
 
-test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 1 filtered out
+test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 1 filtered out
 
    Doc-tests tmp-test-should-panic