Embed git information in your code at compile-time.
```rust
use git_version::git_version;
const GIT_VERSION: &str = git_version!();
```
The version number will have a `-modified` suffix if your git worktree had
untracked or changed files.
These macros do not depend on libgit, but simply uses the `git` binary directly.
So you must have `git` installed somewhere in your `PATH`.
License: BSD-2-Clause