ext/psych/lib/psych/scalar_scanner.rb: Fix scalar_scanner to understand strings starting with an underscore and containing only digits. Thanks Kelley Reynolds.
test/psych/test_scalar_scanner.rb: test for fix
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37287 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ext/psych/lib/psych/scalar_scanner.rb: Fix scalar_scanner to
understand strings starting with an underscore and containing only
digits. Thanks Kelley Reynolds.
test/psych/test_scalar_scanner.rb: test for fix
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37287 b2dd03c8-39d4-4d8f-98ff-823fe69b080e