*: s/xatoi_u/xatoi_positive/g - I got bored of mistyping xatoi_u as xatou_i

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

libbb/xatonum.c

@@ -59,7 +59,7 @@ unsigned bb_strtoui(const char *str, char **end, int b)
 
 /* A few special cases */
 
-int FAST_FUNC xatoi_u(const char *numstr)
+int FAST_FUNC xatoi_positive(const char *numstr)
 {
 	return xatou_range(numstr, 0, INT_MAX);
 }