Ignore test-log-dump-to-file.txt

Sometimes left behind by unit.test

.gitignore

@@ -78,6 +78,7 @@ tests/unit
 testsuite/testsuite.test
 tests/unit.test
 tests/bio_write_test.txt
+tests/test-log-dump-to-file.txt
 test-write-dhparams.pem
 testsuite/*.der
 testsuite/*.pem