diff: Fix rebase breackage

src/attr.c

@@ -235,7 +235,7 @@ int git_attr_cache__lookup_or_create_file(
 		return GIT_SUCCESS;
 	}
 
-	if (loader && git_path_exists(filename) != GIT_SUCCESS) {
+	if (loader && git_path_exists(filename) == false) {
 		*file_ptr = NULL;
 		return GIT_SUCCESS;
 	}

src/iterator.c

@@ -440,7 +440,7 @@ static int workdir_iterator__update_entry(workdir_iterator *wi)
 
 	/* detect submodules */
 	if (S_ISDIR(wi->entry.mode) &&
-		git_path_contains(&wi->path, DOT_GIT) == GIT_SUCCESS)
+		git_path_contains(&wi->path, DOT_GIT) == true)
 		wi->entry.mode = S_IFGITLINK;
 
 	return GIT_SUCCESS;

src/odb_loose.c

@@ -480,7 +480,7 @@ static int fn_locate_object_short_oid(void *state, git_buf *pathbuf) {
 		return GIT_SUCCESS;
 	}
 
-	if (git_path_isdir(pathbuf->ptr) == true) {
+	if (git_path_isdir(pathbuf->ptr) == false) {
 		/* We are already in the directory matching the 2 first hex characters,
 		 * compare the first ncmp characters of the oids */
 		if (!memcmp(sstate->short_oid + 2,

src/repository.c

@@ -171,7 +171,7 @@ int git_repository_open(git_repository **repo_out, const char *path)
 	 * of the working dir, by testing if it contains a `.git`
 	 * folder inside of it.
 	 */
-	if (git_path_contains_dir(&path_buf, GIT_DIR) == GIT_SUCCESS)
+	if (git_path_contains_dir(&path_buf, GIT_DIR) == true)
 		git_buf_joinpath(&path_buf, path_buf.ptr, GIT_DIR);
 
 	if (quickcheck_repository_dir(&path_buf) < GIT_SUCCESS) {

tests-clar/diff/diff_helpers.c

@@ -7,8 +7,8 @@ git_tree *resolve_commit_oid_to_tree(
 {
 	size_t len = strlen(partial_oid);
 	git_oid oid;
-	git_object *obj;
-	git_tree *tree;
+	git_object *obj = NULL;
+	git_tree *tree = NULL;
 
 	if (git_oid_fromstrn(&oid, partial_oid, len) == 0)
 		git_object_lookup_prefix(&obj, repo, &oid, len, GIT_OBJ_ANY);