* test/rake/test_rake_application.rb (test_display_exception_details):
`RbConfig::CONFIG["prefix"]` can be the root directory, under
test-all.
* test/rake/test_rake_test_task.rb (test_run_code_rake_default_gem):
`-I` may be inserted, under test-all.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46890 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
from RDoc.
* lib/rake/version.rb: Bump version to 0.9.2.1 to distinguish it from
the released version.
* NEWS: ditto
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32265 b2dd03c8-39d4-4d8f-98ff-823fe69b080e