Don't fail when 'did_you_mean' is not available.

Although 'did_you_mean' is always available in upstream Ruby, it might
not be available when speed, memory, disk or network bandwidth is a
concern. This is typically the case for production environment, where
'did_you_mean' is of limited usage.

Also it might not be available optionally when Ruby is delivered via
packaging systems. E.g. Linux distributions.

1 files changed, 5 insertions, 1 deletions

diff --git a/gem_prelude.rb b/gem_prelude.rb
index 1d0158d00a..1c57c943ad 100644
--- a/gem_prelude.rb
+++ b/gem_prelude.rb
@@ -1,2 +1,6 @@
 require 'rubygems.rb' if defined?(Gem)
-require 'did_you_mean' if defined?(DidYouMean)
+
+begin
+  require 'did_you_mean'
+rescue LoadError
+end if defined?(DidYouMean)