fix chomping newline only line
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57088 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
fix chomping newline only line
rb_enc_prev_char return NULL if no previous character and must
not call rb_enc_ascget on it. a patch by Ary Borenszweig
at [ruby-core:78666]. [Bug #13037]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57088 b2dd03c8-39d4-4d8f-98ff-823fe69b080e