Fixed typo

Author: radarhere

src/libImaging/Draw.c

@@ -42,7 +42,7 @@
 #define INK8(ink) (*(UINT8*)ink)
 
 /*
- * Rounds around zero (up=away from zero, down=torwards zero)
+ * Rounds around zero (up=away from zero, down=towards zero)
  * This guarantees that ROUND_UP|DOWN(f) == -ROUND_UP|DOWN(-f)
  */
 #define ROUND_UP(f)    ((int) ((f) >= 0.0 ? floor((f) + 0.5F) : -floor(fabs(f) + 0.5F)))