Fix typo of 'SQLITE_OMIT_WINDOWFUNC'.

FossilOrigin-Name: 8607b84a5c53d8c9218c90802160a3000f1138b1f188e411a3af46253e0a69cc
diff --git a/src/treeview.c b/src/treeview.c
index d98ad8f..7605fa2 100644
--- a/src/treeview.c
+++ b/src/treeview.c
@@ -508,7 +508,7 @@
       if( pFarg ){
         sqlite3TreeViewExprList(pView, pFarg, pWin!=0, 0);
       }
-#ifndef SQLITe_OMIT_WINDOWFUNC
+#ifndef SQLITE_OMIT_WINDOWFUNC
       if( pWin ){
         sqlite3TreeViewWindow(pView, pWin, 0);
       }