Removing newline character at end of export_line

[gziskind]

This is needed because in the "line" cookbook resource "replace_or_add", the value for line is compared to the existing line in the /etc/exports file, but modified with .chomp

# line/libraries/provider_replace_or_add.rb
# Lines: 51-55

unless line.chomp == new_resource.line
  line = new_resource.line
  modified = true
end

So, when "new_resource.line" ends with a '\n' character, it will never be equal to line.chomp, so it will always be marked as modified = true. When modified is set to true, the resource is declared as updated by the last action, so the line notifies :run, 'execute[exportfs]', :immediately will notify execute[exportfs] everytime, even if there was no update to the line.

[atomic-penguin]

@gziskind can you provide a sample test case to reproduce this bug?