8148630: Convert TraceStartupTime to Unified Logging Summary: The former -XX:+TraceStartupTime flag has been converted to the UL option -Xlog:startuptime=info Reviewed-by: coleenp, dholmes

^build/
^dist/
nbproject/private/
^webrev
^.hgtip
^.bridge2
^.jib/
.DS_Store
.metadata/
.recommenders/