Update runtime files.
Add missing test files.
diff --git a/runtime/doc/pattern.txt b/runtime/doc/pattern.txt
index 6040ba8..7565c89 100644
--- a/runtime/doc/pattern.txt
+++ b/runtime/doc/pattern.txt
@@ -504,7 +504,7 @@
x x a character with no special meaning matches itself
|/[]| [] \[] any character specified inside the []
-|/\%[]| \%[] \%[] a sequence of optionally matched atoms
+|/\%[]| \%[] \%[] a sequence of optionally matched atoms
|/\c| \c \c ignore case, do not use the 'ignorecase' option
|/\C| \C \C match case, do not use the 'ignorecase' option