Treat xlf as text

nguerrera · Peter Huene · commit e9706a98cd9e · 2017-12-07T16:00:07.000-08:00
diff --git a/.gitattributes b/.gitattributes
@@ -51,4 +51,5 @@
 *.vbproj text=auto
 *.fsproj text=auto
 *.dbproj text=auto
+*.xlf text=auto
 *.sln text=auto eol=crlf
