patch 7.4.1572

Problem:    Setting 'compatible' in test influences following tests.
Solution:   Turn 'compatible' off again.

src/testdir/test_backspace_opt.vim

@@ -53,6 +53,7 @@ func Test_backspace_option()
   " Cleared when 'compatible' is set
   set compatible
   call assert_equal('', &backspace)
+  set nocompatible
 endfunc
 
 " vim: tabstop=2 shiftwidth=0 expandtab

src/version.c

@@ -743,6 +743,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1572,
 /**/
     1571,
 /**/