Update make_cxx_dr_status after the 3.8 branch.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@257695 91177308-0d34-0410-b5e6-96231b3b80d8

www/make_cxx_dr_status

@@ -102,10 +102,10 @@ def availability(issue):
   if status == 'unknown':
     avail = 'Unknown'
     avail_style = ' class="none"'
-  elif status == '3.8':
+  elif status == '3.9':
     avail = 'SVN'
     avail_style = ' class="svn"'
-  elif status in ('3.1', '3.2', '3.3', '3.4', '3.5', '3.6', '3.7'):
+  elif status.startswith('3.'):
     avail = 'Clang %s' % status
     avail_style = ' class="full"'
   elif status == 'yes':