patch 8.2.4978: no error if engine selection atom is not at the start
Problem: No error if engine selection atom is not at the start.
Solution: Give an error. (Christian Brabandt, closes #10439)
diff --git a/runtime/doc/pattern.txt b/runtime/doc/pattern.txt
index 7de1824..50fd53c 100644
--- a/runtime/doc/pattern.txt
+++ b/runtime/doc/pattern.txt
@@ -379,7 +379,7 @@
1. An old, backtracking engine that supports everything.
2. A new, NFA engine that works much faster on some patterns, possibly slower
on some patterns.
-
+ *E1281*
Vim will automatically select the right engine for you. However, if you run
into a problem or want to specifically select one engine or the other, you can
prepend one of the following to the pattern: