patch 8.0.0995: terminal tests fail on Mac

Problem:    Terminal tests fail on Mac.
Solution:   Add workaround: sleep a moment in between sending keys.

src/testdir/test_terminal.vim

@@ -456,6 +456,11 @@ func Test_terminal_noblock()
 
   for c in ['a','b','c','d','e','f','g','h','i','j','k']
     call term_sendkeys(g:buf, 'echo ' . repeat(c, 5000) . "\<cr>")
+    if has('mac')
+      " TODO: this should not be needed, but without it sending keys blocks
+      " after 8000 chars or so.
+      sleep 100m
+    endif
   endfor
   call term_sendkeys(g:buf, "echo done\<cr>")
 

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    995,
 /**/
     994,
 /**/