* src/csplit.c (usage): Remove declaration.
* src/ls.c (usage): Likewise.
* src/pr.c (usage): Likewise.
static void create_output_file (void);
static void delete_all_files (bool);
static void save_line_to_file (const struct cstring *line);
-void usage (int status);
/* Start of buffer list. */
static struct buffer_record *head = NULL;
bool command_line_arg);
static void sort_files (void);
static void parse_ls_color (void);
-void usage (int status);
/* Initial size of hash table.
Most hierarchies are likely to be shallower than this. */
static void add_line_number (COLUMN *p);
static void getoptarg (char *arg, char switch_char, char *character,
int *number);
-void usage (int status);
static void print_files (int number_of_files, char **av);
static void init_parameters (int number_of_files);
static void init_header (char const *filename, int desc);