Windows tests are failing #3

---- context_diff::tests::test_permutations_reverse stdout ----
thread 'context_diff::tests::test_permutations_reverse' panicked at src\context_diff.rs:653:33:
Output { status: ExitStatus(ExitStatus(3)), stdout: "patching file target/context-diff//alefr\r\n", stderr: "Assertation failed!\r\n\r\nProgram: C:\\Strawberry\\c\\bin\\patch.exe\r\nFile: .\\src\\patch\\2.5.9\\patch-2.5.9-src\\patch.c, Line 354\r\n\r\nExpression: hunk\r\n" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

---- ed_diff::tests::test_permutations stdout ----
thread 'ed_diff::tests::test_permutations' panicked at src\ed_diff.rs:222:38:
called `Result::unwrap()` on an `Err` value: Error { kind: NotFound, message: "program not found" }