Run GC.start before test_too_long_path.

NoMemoryError is raised in MiniTest#exception_details where exception
is made, and no effect. Run GC.start before running to keep the room.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33235 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_process.rb

@@ -1236,15 +1236,17 @@ class TestProcess < Test::Unit::TestCase
   end if File.executable?("/bin/sh")
 
   def test_too_long_path
+    GC.start
     bug4314 = '[ruby-core:34842]'
-    exs = [NoMemoryError, Errno::ENOENT]
+    exs = [Errno::ENOENT]
     exs << Errno::E2BIG if defined?(Errno::E2BIG)
     assert_raise(*exs, bug4314) {Process.spawn("a" * 10_000_000)}
   end
 
   def test_too_long_path2
+    GC.start
     bug4315 = '[ruby-core:34833]'
-    exs = [NoMemoryError, Errno::ENOENT]
+    exs = [Errno::ENOENT]
     exs << Errno::E2BIG if defined?(Errno::E2BIG)
     assert_raise(*exs, bug4315) {Process.spawn('"a"|'*10_000_000)}
   end