doc: /* Return the nearest integer to ARG.
With optional DIVISOR, return the nearest integer to ARG/DIVISOR.
-If ARG is equally close to both the nearest integer smaller than ARG
-and to the nearest integer larger than ARG, the result can be either
-of these two integers, depending on the underlying implementation of
-the system library. For example, \(round 2.5\) can return 3 on some
+Rounding a value equidistant between two integers may choose the
+integer closer to zero, or it may prefer an even integer, depending on
+your machine. For example, \(round 2.5\) can return 3 on some
systems, but 3 on others. */)
(arg, divisor)
Lisp_Object arg, divisor;