ext/standard: Use usual not empty error for proc_open() (php#18083)

Author: Girgias

ext/standard/proc_open.c

@@ -1247,8 +1247,8 @@ PHP_FUNCTION(proc_open)
 
 	if (command_ht) {
 		uint32_t num_elems = zend_hash_num_elements(command_ht);
-		if (num_elems == 0) {
-			zend_argument_value_error(1, "must have at least one element");
+		if (UNEXPECTED(num_elems == 0)) {
+			zend_argument_must_not_be_empty_error(1);
 			RETURN_THROWS();
 		}
 

ext/standard/tests/general_functions/proc_open_array.phpt

@@ -76,7 +76,7 @@ proc_close($proc);
 ?>
 --EXPECT--
 Empty command array:
-proc_open(): Argument #1 ($command) must have at least one element
+proc_open(): Argument #1 ($command) must not be empty
 
 Nul byte in program name:
 Command array element 1 contains a null byte