test_rinda.rb: extend timeout of wait_for as well

https://app.wercker.com/ruby/ruby/runs/mjit-test2/5c5961adb18ed400951edeeb?step=5c596fd563e946000717df91

see also: r67003

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67012 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/rinda/test_rinda.rb

@@ -822,6 +822,7 @@ class TestRingServer < Test::Unit::TestCase
   end
 
   def wait_for(n)
+    n *= 10 if RubyVM::MJIT.enabled? # for --jit-wait
     t = n + Process.clock_gettime(Process::CLOCK_MONOTONIC, :second)
     until yield
       if t < Process.clock_gettime(Process::CLOCK_MONOTONIC, :second)