multiplier suffixes are short, store them directly in struct suffix_mult

function                                             old     new   delta
xstrtoul_range_sfx                                   226     217      -9
xstrtoull_range_sfx                                  291     280     -11
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-20)             Total: -20 bytes
   text    data     bss     dec     hex filename
 669128    2668   13616  685412   a7564 busybox_old
 669108    2668   13616  685392   a7550 busybox_unstripped

diff --git a/runit/svlogd.c b/runit/svlogd.c
index 08e0b64..b271b74 100644
--- a/runit/svlogd.c
+++ b/runit/svlogd.c
@@ -488,9 +488,9 @@
 				break;
 			case 's': {
 				static const struct suffix_mult km_suffixes[] = {
-						{ "k", 1024 },
-						{ "m", 1024*1024 },
-						{ NULL, 0 }
+					{ "k", 1024 },
+					{ "m", 1024*1024 },
+					{ }
 				};
 				ld->sizemax = xatou_sfx(&s[1], km_suffixes);
 				break;
@@ -503,10 +503,10 @@
 				break;
 			case 't': {
 				static const struct suffix_mult mh_suffixes[] = {
-						{ "m", 60 },
-						{ "h", 60*60 },
-						/*{ "d", 24*60*60 },*/
-						{ NULL, 0 }
+					{ "m", 60 },
+					{ "h", 60*60 },
+					/*{ "d", 24*60*60 },*/
+					{ }
 				};
 				ld->tmax = xatou_sfx(&s[1], mh_suffixes);
 				if (ld->tmax) {