the value was incorrectly hardcoded in the generate.rb script, this restores the right value
fixes
TestCSVEncodings::DifferentOFS#test_regular_expression_escaping:
Java::JavaLang::AssertionError: UTF8-MAC state not large enough
org.jcodings.transcode.TranscodeFunctions.bufClear(TranscodeFunctions.java:1035)
org.jcodings.transcode.TranscodeFunctions.fromUtf8MacInit(TranscodeFunctions.java:1017)
org.jcodings.transcode.specific.From_UTF8_MAC_Transcoder.stateInit(From_UTF8_MAC_Transcoder.java:35)
org.jcodings.transcode.Transcoding.<init>(Transcoding.java:38)
the value was incorrectly hardcoded in the generate.rb script, this restores the right value
fixes
refs https://github.com/jruby/jruby/pull/7142