emacs-28 4d16a2f: Fix pdf generation with Texinfo 6.7

[Robert Pluim]

branch: emacs-28
commit 4d16a2f7373a8d328f589b61ade3a2da7275501e
Author: Robert Pluim <rpluim@gmail.com>
Commit: Robert Pluim <rpluim@gmail.com>

    Fix pdf generation with Texinfo 6.7
    
    * doc/lispref/display.texi (Size of Displayed Text): Put @group inside
    @example (bug#52102).
---
 doc/lispref/display.texi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/lispref/display.texi b/doc/lispref/display.texi
index 386d51a..b1fb9f8 100644
--- a/doc/lispref/display.texi
+++ b/doc/lispref/display.texi
@@ -2026,14 +2026,14 @@ means hide the excess parts of @var{string} with a 
@code{display} text
 property (@pxref{Display Property}) showing the ellipsis, instead of
 actually truncating the string.
 
-@group
 @example
+@group
 (truncate-string-to-width "\tab\t" 12 4)
      @result{} "ab"
 (truncate-string-to-width "\tab\t" 12 4 ?\s)
      @result{} "    ab  "
-@end example
 @end group
+@end example
 
 This function uses @code{string-width} and @code{char-width} to find
 the suitable truncation point when @var{string} is too wide, so it