patch 8.1.0272: options test fails if temp var ends in slash

Problem:    Options test fails if temp var ends in slash. (Tom Briden)
Solution:   Check for optional slash. (closes #3308)

src/testdir/test_options.vim

@@ -344,7 +344,7 @@ func Test_backupskip()
   for var in  ['$TEMPDIR', '$TMP', '$TEMP']
     if exists(var)
       let varvalue = substitute(expand(var), '\\', '/', 'g')
-      call assert_match(varvalue . '.\*', bskvalue)
+      call assert_match(varvalue . '/\=\*', bskvalue)
     endif
   endfor
 endfunc

src/version.c

@@ -794,6 +794,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    272,
 /**/
     271,
 /**/