Merge pull request #2626 from reaperhulk/dstufft-also-annoyed-by-mentionbot

@dstufft is also annoyed by the mentionbot
diff --git a/.mention-bot b/.mention-bot
index d87cb33..a05018e 100644
--- a/.mention-bot
+++ b/.mention-bot
@@ -1,3 +1,3 @@
 {
-    "userBlacklist": ["dreid", "exarkun"]
+    "userBlacklist": ["dreid", "exarkun", "dstufft"]
 }