Updated CREDITS.TXT

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185462 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CREDITS.TXT b/CREDITS.TXT
index d75630a..7a5c94d 100644
--- a/CREDITS.TXT
+++ b/CREDITS.TXT
@@ -37,6 +37,10 @@
 E: william.w.fisher@gmail.com
 D: Regex bug fixes.
 
+N: Matthew Dempsky
+E: matthew@dempsky.org
+D: Minor patches and bug fixes.
+
 N: Google Inc.
 D: Copyright owner and contributor of the CityHash algorithm