main: Use "expires_after" instead

"expires_from_now" has been replaced with "expires_after".

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I8abfd6643f49fefa4b4e3fd226019b0618a53d98
diff --git a/src/main.cpp b/src/main.cpp
index 054df43..60fc8b5 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -63,7 +63,7 @@
         }
     }
 
-    t->expires_from_now(readIntervalinMs);
+    t->expires_after(readIntervalinMs);
     t->async_wait(
         std::bind_front(readLoop, t, bufferInterface, rdeCommandHandler));
 }