patch 8.2.2016: swap file test is a little flaky

Problem:    Swap file test is a little flaky.
Solution:   Don't set a byte to a fixed value, increment it.
diff --git a/src/testdir/test_swap.vim b/src/testdir/test_swap.vim
index 8a6d81c..4bc7309 100644
--- a/src/testdir/test_swap.vim
+++ b/src/testdir/test_swap.vim
@@ -417,7 +417,7 @@
   " swap file should be automatically deleted.
   bwipe!
   " change the process ID to avoid the "still running" warning
-  let swapfile_bytes[24] = 0x99
+  let swapfile_bytes[24] = swapfile_bytes[24] + 1
   call writefile(swapfile_bytes, swapfile_name)
   edit Xtest.scr
   " will end up using the same swap file after deleting the existing one
@@ -433,7 +433,7 @@
   augroup END
 
   " change the host name
-  let swapfile_bytes[28 + 40] = 0x89
+  let swapfile_bytes[28 + 40] = swapfile_bytes[28 + 40] + 2
   call writefile(swapfile_bytes, swapfile_name)
   edit Xtest.scr
   call assert_equal(1, filereadable(swapfile_name))
diff --git a/src/version.c b/src/version.c
index 1170a7f..01cf3c9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2016,
+/**/
     2015,
 /**/
     2014,