Tag 9.0.0.M1

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tags/TOMCAT_9_0_0_M1@1714130 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/build.properties.default b/build.properties.default
index 3b74dd0..a93d6e9 100644
--- a/build.properties.default
+++ b/build.properties.default
@@ -27,7 +27,7 @@
 version.minor=0
 version.build=0
 version.patch=0
-version.suffix=.M1-dev
+version.suffix=.M1
 
 # ----- Build control flags -----
 # Note enabling validation uses Checkstyle which is LGPL licensed