Utility to replace ~ with user home directory
```rust extern crate untildify;
fn main() {
println!("Untildify : {}", untildify::untildify("~/Desktop"));
// prints /Users/
// Other Examples asserteq!(untildify("~/a/b/c/d/e"), "/User/Untildify/a/b/c/d/e"); asserteq!(untildify("~/"), "/User/Untildify/"); }
```