repository: clear out-parameter instead of freeing it
The `path` out-parameter of `find_repo` is being sanitized initially
such that we do not try to append to existing content. The sanitization
is done via `git_buf_free`, though, which forces us to needlessly
reallocate the buffer later in the function. Fix this by using
`git_buf_clear` instead.
diff --git a/src/repository.c b/src/repository.c
index f8d19eb..49509fc 100644
--- a/src/repository.c
+++ b/src/repository.c
@@ -440,7 +440,7 @@
bool in_dot_git;
size_t ceiling_offset = 0;
- git_buf_free(repo_path);
+ git_buf_clear(repo_path);
error = git_path_prettify(&path, start_path, NULL);
if (error < 0)
