vm_trace.c: remove duplicate flag
tracing
ec->trace_arg != NULL
ec->trace_arg
dummy_trace_arg
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60962 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
vm_trace.c: remove duplicate flag
tracing, which equals toec->trace_arg != NULL. and thatec->trace_argpointsdummy_trace_argmeans it was NULL atthe beginning.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60962 b2dd03c8-39d4-4d8f-98ff-823fe69b080e