Fix: when resetting both 'title' and 'icon' the title would be set after a
shell command.
Reset 'title' and 'icon' in test47 to avoid the xterm title getting messed up.
diff --git a/src/testdir/test47.in b/src/testdir/test47.in
index d8384de..c87387b 100644
--- a/src/testdir/test47.in
+++ b/src/testdir/test47.in
@@ -2,6 +2,8 @@
 
 STARTTEST
 :so small.vim
+:" Disable the title to avoid xterm keeping the wrong one.
+:set notitle noicon
 /^1
 yG:new
 pkdd:w! Xtest