patch 8.2.3045: minor typos

Problem:    Minor typos.
Solution:   Fix the typos. (Christian Brabandt, closes #8441)
diff --git a/src/testdir/vim9.vim b/src/testdir/vim9.vim
index 9efa655..cb66d42 100644
--- a/src/testdir/vim9.vim
+++ b/src/testdir/vim9.vim
@@ -107,7 +107,7 @@
   CheckScriptFailure(['vim9script'] + lines, error, lnum + 1)
 enddef
 
-" As CheckDefAndScriptFailure() but with two different exepcted errors.
+" As CheckDefAndScriptFailure() but with two different exepected errors.
 def CheckDefAndScriptFailure2(
   	lines: list<string>,
 	errorDef: string,