msh: fix ENOENT testcase

diff --git a/shell/msh_test/msh-execution/exitcode_ENOENT.right b/shell/msh_test/msh-execution/exitcode_ENOENT.right
index e2bad05..dd49d2c 100644
--- a/shell/msh_test/msh-execution/exitcode_ENOENT.right
+++ b/shell/msh_test/msh-execution/exitcode_ENOENT.right
@@ -1,2 +1,2 @@
-./does_exist_for_sure: not found
+./does_not_exist_for_sure: not found
 127