dojox.validate.isUrl returns true when first character is a number

[guest]

dojo.forEach([
     "1notaurl",
     "7f03notreal",
     "123456",
], function(testStr) {
     if(dojox.validate.isUrl(testStr))
          console.log(testStr+" is a url");
     else
          console.log(testStr+" is not a url");
});

[dante]

dup of #2347 ...

the spec says 12345 (as well as 1notaurl) are all valid urls.