*: whitespace fixes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/libbb/human_readable.c b/libbb/human_readable.c
index 50cbe41..8b22b0c 100644
--- a/libbb/human_readable.c
+++ b/libbb/human_readable.c
@@ -53,8 +53,8 @@
 	u = unit_chars;
 
 	if (display_unit) {
-		val += display_unit/2;	/* Deal with rounding */
-		val /= display_unit;	/* Don't combine with the line above! */
+		val += display_unit/2;  /* Deal with rounding */
+		val /= display_unit;    /* Don't combine with the line above! */
 		/* will just print it as ulonglong (below) */
 	} else {
 		while ((val >= 1024)