patch 7.4.786
Problem: It is not possible for a plugin to adjust to a changed setting.
Solution: Add the OptionSet autocommand event. (Christian Brabandt)
diff --git a/src/testdir/Make_os2.mak b/src/testdir/Make_os2.mak
index b93408c..7277556 100644
--- a/src/testdir/Make_os2.mak
+++ b/src/testdir/Make_os2.mak
@@ -39,6 +39,7 @@
test105.out test106.out test107.out \
test_argument_0count.out \
test_argument_count.out \
+ test_autocmd_option.out \
test_autoformat_join.out \
test_breakindent.out \
test_changelist.out \