Backport https://github.com/ruby/irb/pull/2

Fix and improve version string by @stomar

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66356 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/irb.rb

@@ -356,8 +356,7 @@ module IRB
   def IRB.version
     if v = @CONF[:VERSION] then return v end
 
-    rv = @RELEASE_VERSION.sub(/\.0/, "")
-    @CONF[:VERSION] = format("irb %s(%s)", rv, @LAST_UPDATE_DATE)
+    @CONF[:VERSION] = format("irb %s (%s)", @RELEASE_VERSION, @LAST_UPDATE_DATE)
   end
 
   # The current IRB::Context of the session, see IRB.conf

lib/irb/version.rb

@@ -13,5 +13,5 @@
 module IRB # :nodoc:
   VERSION = "0.9.6"
   @RELEASE_VERSION = VERSION
-  @LAST_UPDATE_DATE = "09/06/30"
+  @LAST_UPDATE_DATE = "2009-06-30"
 end