Prevent error if no entry in ls_remote

Bertrand Roussel · Bertrand Roussel · commit f24b665cc72d · 2018-02-20T11:33:38.000-08:00
Otherwise it would fail with:
/home/broussel/.rvm/gems/ruby-2.2.1/bundler/gems/ruby-git-7df9d79d5b63/lib/git/lib.rb:417:in
`block (2 levels) in ls_remote': undefined method `split' for
nil:NilClass (NoMethodError)
        from
/home/broussel/.rvm/gems/ruby-2.2.1/bundler/gems/ruby-git-7df9d79d5b63/lib/git/lib.rb:415:in
`each'
        from
/home/broussel/.rvm/gems/ruby-2.2.1/bundler/gems/ruby-git-7df9d79d5b63/lib/git/lib.rb:415:in
`block in ls_remote'
        from
/home/broussel/.rvm/gems/ruby-2.2.1/bundler/gems/ruby-git-7df9d79d5b63/lib/git/lib.rb:414:in
`tap'
        from
/home/broussel/.rvm/gems/ruby-2.2.1/bundler/gems/ruby-git-7df9d79d5b63/lib/git/lib.rb:414:in
`ls_remote'
        from
/home/broussel/.rvm/gems/ruby-2.2.1/bundler/gems/ruby-git-7df9d79d5b63/lib/git.rb:149:in
`ls_remote'
diff --git a/lib/git/lib.rb b/lib/git/lib.rb
@@ -414,6 +414,7 @@ def ls_remote(location=nil)
       Hash.new{ |h,k| h[k] = {} }.tap do |hsh|
         command_lines('ls-remote', [location], false).each do |line|
           (sha, info) = line.split("\t")
+          next if not info
           (ref, type, name) = info.split('/', 3)
           type ||= 'head'
           type = 'branches' if type == 'heads'
