Adjust some Process.uid= specs for 2.0
Adjust some Process.uid= specs for 2.0

It looks modified on r35158 for http://bugs.ruby-lang.org/issues/5610.

DavidEGrayson/rubyspec,bl4ckdu5t/rubyspec,lucaspinto/rubyspec,lucaspinto/rubyspec,DavidEGrayson/rubyspec,ruby/rubyspec,benlovell/rubyspec,nobu/rubyspec,wied03/rubyspec,sgarciac/spec,ruby/rubyspec,ruby/spec,iliabylich/rubyspec,iliabylich/rubyspec,chesterbr/rubyspec,ruby/spec,alexch/rubyspec,kachick/rubyspec,yous/rubyspec,benlovell/rubyspec,kidaa/rubyspec,bl4ckdu5t/rubyspec,ruby/spec,yaauie/rubyspec,yous/rubyspec,alexch/rubyspec,kidaa/rubyspec,wied03/rubyspec,sgarciac/spec,Aesthetikx/rubyspec,DawidJanczak/rubyspec,BanzaiMan/rubyspec,saturnflyer/rubyspec,sgarciac/spec,eregon/rubyspec,BanzaiMan/rubyspec,Aesthetikx/rubyspec,yaauie/rubyspec,eregon/rubyspec,kachick/rubyspec,jannishuebl/rubyspec,eregon/rubyspec,saturnflyer/rubyspec,chesterbr/rubyspec,kachick/rubyspec,jannishuebl/rubyspec,askl56/rubyspec,nobu/rubyspec,DawidJanczak/rubyspec,askl56/rubyspec,nobu/rubyspec,wied03/rubyspec