* `graph_init()` creates a new `struct git_graph`
-* `graph_release()` destroys a `struct git_graph`, and frees the memory
- associated with it.
-
* `graph_update()` moves the graph to a new commit.
* `graph_next_line()` outputs the next line of the graph into a strbuf. It
putchar(opts->diffopt.line_termination);
}
}
-
-graph_release(graph);
------------
Sample output