[Groff] numeric chars are broken

[Alejandro Lopez-Valencia]

Hmmm... I revisited some old documents that use \n[charxxx] requests and 
they are broken... Now I can't access glyphs by number[1] unless I use 
\N'XXX'. Is this intentional?

.\" groff -ms
.LP
This is a test of char requests:
.LP
This should be char 237 (iacute): \n[char237], but what
about this \N'237'?
.LP
And this should be char 33 (exclamation): \n[char33], but
what about this \N'33'?

[1] Say, to set up little fleurons from Zapf Dingbats.