updated for version 7.4b.006
Problem: Using \{n,m} in an autocommand pattern no longer works.
Specifically, mutt temp files are not recognized. (Gary Johnson)
Solution: Make \\\{n,m\} work.
diff --git a/runtime/doc/autocmd.txt b/runtime/doc/autocmd.txt
index 4d7a426..543c1df 100644
--- a/runtime/doc/autocmd.txt
+++ b/runtime/doc/autocmd.txt
@@ -961,6 +961,9 @@
\, matches a ','
{ } like \( \) in a |pattern|
, inside { }: like \| in a |pattern|
+ \} literal }
+ \{ literal {
+ \\\{n,m\} like \{n,m} in a |pattern|
\ special meaning like in a |pattern|
[ch] matches 'c' or 'h'
[^ch] match any character but 'c' and 'h'