master 8af0fe2: etc/refcards/refcard.tex: Fix some grouping regexps

[Lars Ingebrigtsen]

branch: master
commit 8af0fe243f3dd91c0836db4de3c7aeeac4a54a89
Author: Masahiro Nakamura <tsuucat@icloud.com>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    etc/refcards/refcard.tex: Fix some grouping regexps
    
    * etc/refcards/refcard.tex (section{Regular Expressions}): Fix the
    shy/numbered grouping examples (bug#43429).
---
 etc/refcards/refcard.tex | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/etc/refcards/refcard.tex b/etc/refcards/refcard.tex
index afae238..c8f0754 100644
--- a/etc/refcards/refcard.tex
+++ b/etc/refcards/refcard.tex
@@ -562,8 +562,8 @@ minibuffer.  Type \kbd{F10} to activate menu bar items on 
text terminals.
 \key{quote regular expression special character {\it c\/}}{\\{\it c}}
 \key{alternative (``or'')}{\\|}
 \key{grouping}{\\( {\rm$\ldots$} \\)}
-\key{shy grouping}{\\(:? {\rm$\ldots$} \\)}
-\key{explicit numbered grouping}{\\(:NUM {\rm$\ldots$} \\)}
+\key{shy grouping}{\\(?: {\rm$\ldots$} \\)}
+\key{explicit numbered grouping}{\\(?NUM: {\rm$\ldots$} \\)}
 \key{same text as {\it n\/}th group}{\\{\it n}}
 \key{at word break}{\\b}
 \key{not at word break}{\\B}