Fixed problem that libsass.so could not be found:
LoadError: Could not open library
'/usr/local/lib/ruby/gems/2.5/gems/sassc-2.0.1/ext/libsass/lib/libsass.so':
Cannot open
"/usr/local/lib/ruby/gems/2.5/gems/sassc-2.0.1/ext/libsass/lib/libsass.so"
/usr/local/www/gitlab-ce/config/application.rb:5:in `<top (required)>'
/usr/local/www/gitlab-ce/Rakefile:5:in `<top (required)>'
(See full trace by running task with --trace)

Submitted by: partly be swills@
Approved by: ruby@ (swills)