forgot to bump version in manual for 1.7.2 release
diff --git a/doc/manual.asciidoc b/doc/manual.asciidoc
index 2e31e30..1e6ea92 100644
--- a/doc/manual.asciidoc
+++ b/doc/manual.asciidoc
@@ -1,6 +1,6 @@
 The Ninja build system
 ======================
-v1.7.1, Apr 2016
+v1.7.2, Nov 2016
 
 
 Introduction