Update version for 7.2.11 release

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff --git a/VERSION b/VERSION
index 6bfb3a0..971381d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-7.2.10
+7.2.11