Second parameter is optional.

diff --git a/ext/standard/math.c b/ext/standard/math.c
index c78ff5633ce7a8ae64623ca3514acdee1930b48e..ab85ee16b520c46e43fa3818439c2c2161930076 100644 (file)
--- a/ext/standard/math.c
+++ b/ext/standard/math.c
@@ -103,7 +103,7 @@ PHP_FUNCTION(floor) {
 /* }}} */
 
 
-/* {{{ proto int round(double number, int precision)
+/* {{{ proto int round(double number [, int precision])
    Returns the number rounded to specified precision. */
 PHP_FUNCTION(round)
 {