Re-generate Spring binstubs for updated version of Spring

Prevents output like this:

    Array values in the parameter are deprecated. Please use a String or nil.
    An Array was passed in from bin/rspec:3:in `load'

1 files changed, 3 insertions, 2 deletions

diff --git a/bin/rspec b/bin/rspec
index 20060ebd79c..6e6709219af 100755
--- a/bin/rspec
+++ b/bin/rspec
@@ -1,7 +1,8 @@
 #!/usr/bin/env ruby
 begin
-  load File.expand_path("../spring", __FILE__)
-rescue LoadError
+  load File.expand_path('../spring', __FILE__)
+rescue LoadError => e
+  raise unless e.message.include?('spring')
 end
 require 'bundler/setup'
 load Gem.bin_path('rspec-core', 'rspec')