[Review] rephrase error messages to use "must not"

Author: kylekatarnls

UPGRADING

@@ -66,7 +66,7 @@ PHP 8.6 UPGRADE NOTES
 6. New Functions
 ========================================
 
-- Core:
+- Standard:
   . `clamp()` returns the given value if in range, else return the nearest bound.
     RFC: https://wiki.php.net/rfc/clamp_v2
 

ext/standard/math.c

@@ -393,12 +393,12 @@ PHP_FUNCTION(round)
 static void php_math_clamp(zval *return_value, zval *value, zval *min, zval *max)
 {
 	if (Z_TYPE_P(min) == IS_DOUBLE && UNEXPECTED(zend_isnan(Z_DVAL_P(min)))) {
-		zend_argument_value_error(2, "cannot be NAN");
+		zend_argument_value_error(2, "must not be NAN");
 		RETURN_THROWS();
 	}
 
 	if (Z_TYPE_P(max) == IS_DOUBLE && UNEXPECTED(zend_isnan(Z_DVAL_P(max)))) {
-		zend_argument_value_error(3, "cannot be NAN");
+		zend_argument_value_error(3, "must not be NAN");
 		RETURN_THROWS();
 	}
 

ext/standard/tests/math/clamp.phpt

@@ -91,10 +91,10 @@ int(10)
 InvalidArgumentException
 RuntimeException
 LogicException
-clamp(): Argument #2 ($min) cannot be NAN
-clamp(): Argument #2 ($min) cannot be NAN
-clamp(): Argument #3 ($max) cannot be NAN
-clamp(): Argument #3 ($max) cannot be NAN
+clamp(): Argument #2 ($min) must not be NAN
+clamp(): Argument #2 ($min) must not be NAN
+clamp(): Argument #3 ($max) must not be NAN
+clamp(): Argument #3 ($max) must not be NAN
 clamp(): Argument #2 ($min) must be smaller than or equal to argument #3 ($max)
 clamp(): Argument #2 ($min) must be smaller than or equal to argument #3 ($max)
 clamp(): Argument #2 ($min) must be smaller than or equal to argument #3 ($max)