libbb/human_readable.c: shrink; and reduce bss usage

also, move smart_ulltoaN there and comment usage locations

function                                             old     new   delta
static.unit_chars                                      7       9      +2
utoa_to_buf                                          110     108      -2
make_human_readable_str                              262     258      -4
fallbackSort                                        1723    1719      -4
static.fmt                                            97      92      -5
static.fmt_tenths                                     10       -     -10
static.str                                            21       4     -17
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/5 up/down: 2/-42)             Total: -40 bytes
   text    data     bss     dec     hex filename
 820981     453    6932  828366   ca3ce busybox_old
 820968     453    6916  828337   ca3b1 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/coreutils/du.c b/coreutils/du.c
index ec283f85e..730d6d162 100644
--- a/coreutils/du.c
+++ b/coreutils/du.c
@@ -58,14 +58,17 @@ static void print(unsigned long size, const char *filename)
 {
         /* TODO - May not want to defer error checking here. */
 #if ENABLE_FEATURE_HUMAN_READABLE
-        printf("%s\t%s\n", make_human_readable_str(size, 512, G.disp_hr),
+        printf("%s\t%s\n",
+                        /* size x 512 / G.disp_hr, show one fractional,
+                         * use suffixes if G.disp_hr == 0 */
+                        make_human_readable_str(size, 512, G.disp_hr),
                         filename);
 #else
         if (G.disp_k) {
                 size++;
                 size >>= 1;
         }
-        printf("%ld\t%s\n", size, filename);
+        printf("%lu\t%s\n", size, filename);
 #endif
 }