minor

[bobef]

============= a.d ================

import std.string;

void main()
{
	char[] a=std.string.toString(cast(long)(1),16); //error
	char[] b=std.string.toString(cast(long)(1),cast(uint)16); //no error
}

/*
a.d(5): function std.string.toString called with argument types:
         (long,int)
matches both:
         std.string.toString(long,uint)
and:
         std.string.toString(ulong,uint)
*/