[elpa] externals/relint 6fc885b 2/4: Describe branch subsumption message

[Mattias Engdegård]

branch: externals/relint
commit 6fc885b585d9d39819903cd7b191231c310dc2a1
Author: Mattias Engdegård <address@hidden>
Commit: Mattias Engdegård <address@hidden>

    Describe branch subsumption message
---
 README.org | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.org b/README.org
index e7dec3e..6735e1c 100644
--- a/README.org
+++ b/README.org
@@ -87,6 +87,11 @@ skip set.
 The same expression occurs in two different branches, like in ~A\|A~.
 This has the effect of only including it once.
 
+- Branch matches superset/subset of a previous branch ::
+A branch in an or-expression matches a superset or subset of what
+another branch matches, like in ~[ab]\|a~. This means that one of the
+branches can be eliminated without changing the meaning of the regexp.
+
 - Uncounted repetition ::
 The construct ~A\{,\}~ repeats A zero or more times which was probably
 not intended.