Initializes a git_config_backend with default values. Equivalent to
creating an instance with GIT_CONFIG_BACKEND_INIT.
@param backend the git_config_backend struct to initialize.
@param version Version of struct; pass GIT_CONFIG_BACKEND_VERSION
@return Zero on success; -1 on failure.
Initializes a git_config_backend with default values. Equivalent to creating an instance with GIT_CONFIG_BACKEND_INIT.
@param backend the git_config_backend struct to initialize. @param version Version of struct; pass GIT_CONFIG_BACKEND_VERSION @return Zero on success; -1 on failure.