std.format reads past end of input

[veelo]

The code below causes an array bounds violation. A FormatException should be thrown instead.

void main()
{
    import std.format, std.exception;
    assertThrown!FormatException(format("%."));
    assertThrown!FormatException(format("%.*"));
}

This is the offending code:

phobos/std/format/spec.d

Lines 459 to 464 in 205256a

	case '.':
	// Precision
	if (trailing[++i] == '*')
	{
	if (isDigit(trailing[++i]))
	{