If @var{string} is already a unibyte string, then the value is
@var{string} itself. Otherwise it is a newly created string, with no
text properties. If @var{string} is multibyte, any characters it
-contains of charset @var{eight-bit-control} or @var{eight-bit-graphic}
+contains of charset @code{eight-bit-control} or @code{eight-bit-graphic}
are converted to the corresponding single byte.
@end defun
@var{string} itself. Otherwise it is a newly created string, with no
text properties. If @var{string} is unibyte and contains any individual
8-bit bytes (i.e.@: not part of a multibyte form), they are converted to
-the corresponding multibyte character of charset @var{eight-bit-control}
-or @var{eight-bit-graphic}.
+the corresponding multibyte character of charset @code{eight-bit-control}
+or @code{eight-bit-graphic}.
@end defun
@node Character Codes