Fix comments about the localtime option.

diff -r e5ea9df58340 -r 242b3654b529 tools/examples/xmexample.vmx
@@ -125,8 +125,8 @@
 
 
 #-----------------------------------------------------------------------------
-#    set the real time clock to local time [default=utc]
-#localtime='utc'
+#    set the real time clock to local time [default=0 i.e. set to utc]
+#localtime=1
 
 
 #-----------------------------------------------------------------------------