Repository: A little fix in error code. GIT_ENOTFOUND is returned when a gitfile…

Repository: A little fix in error code. GIT_ENOTFOUND is returned when a gitfile is malformed and GIT_ENOTAREPO when the pointed dir is not a repo.
Fixed tests so that it check the right error code.

src/repository.c

@@ -412,7 +412,7 @@ static int read_gitfile(char *path_out, size_t size, const char *file_path, cons
 	for (;data[end_offset] == '\r' || data[end_offset] == '\n'; --end_offset);
 	data[end_offset + 1] = '\0';
 
-	if (GIT_FILE_CONTENT_PREFIX_LENGTH == end_offset) {
+	if (GIT_FILE_CONTENT_PREFIX_LENGTH == end_offset + 1) {
 		gitfo_free_buf(&file);
 		return git__throw(GIT_ENOTFOUND, "No path in git file `%s`", file_path);
 	}

tests/t12-repo.c

@@ -345,15 +345,13 @@ BEGIN_TEST(discover0, "test discover")
 	char repository_path[GIT_PATH_MAX];
 	char sub_repository_path[GIT_PATH_MAX];
 	char found_path[GIT_PATH_MAX];
-	int error;
 	int mode = 0755;
 
 	rmdir_recurs(DISCOVER_FOLDER);
 	must_pass(append_ceiling_dir(ceiling_dirs,TEST_RESOURCES));
 	gitfo_mkdir_recurs(DISCOVER_FOLDER, mode);
 
-	must_fail(error = git_repository_discover(repository_path, sizeof(repository_path), DISCOVER_FOLDER, 0, ceiling_dirs));
-	must_be_true(error == GIT_ENOTAREPO);
+	must_be_true(git_repository_discover(repository_path, sizeof(repository_path), DISCOVER_FOLDER, 0, ceiling_dirs) == GIT_ENOTAREPO);
 
 	must_pass(git_repository_init(&repo, DISCOVER_FOLDER, 1));
 	must_pass(git_repository_discover(repository_path, sizeof(repository_path), DISCOVER_FOLDER, 0, ceiling_dirs));
@@ -387,15 +385,15 @@ BEGIN_TEST(discover0, "test discover")
 	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_MALFORMED_FOLDER1, 0, ceiling_dirs));
 	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_MALFORMED_FOLDER2, 0, ceiling_dirs));
 	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_MALFORMED_FOLDER3, 0, ceiling_dirs));
-	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_NOT_FOUND_FOLDER, 0, ceiling_dirs));
+	must_be_true(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_NOT_FOUND_FOLDER, 0, ceiling_dirs) == GIT_ENOTAREPO);
 
 	must_pass(append_ceiling_dir(ceiling_dirs, SUB_REPOSITORY_FOLDER));
 	//this must pass as ceiling_directories cannot predent the current
 	//working directory to be checked
 	must_pass(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER, 0, ceiling_dirs));
-	must_fail(error = git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB, 0, ceiling_dirs));
-	must_fail(error = git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB_SUB, 0, ceiling_dirs));
-	must_fail(error = git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, 0, ceiling_dirs));
+	must_be_true(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB, 0, ceiling_dirs) == GIT_ENOTAREPO);
+	must_be_true(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB_SUB, 0, ceiling_dirs) == GIT_ENOTAREPO);
+	must_be_true(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, 0, ceiling_dirs) == GIT_ENOTAREPO);
 
 	//.gitfile redirection should not be affected by ceiling directories
 	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER, ceiling_dirs, sub_repository_path));