share/rbbt_commands/rsync in rbbt-util-5.21.9 vs share/rbbt_commands/rsync in rbbt-util-5.21.11

@@ -27,10 +27,10 @@
   end
   exit 0
 end
 
 excludes = %w(.save .crap .source tmp filecache  open-remote workflows apps software jobs sinatra PCAWG)
-excludes += options[:exclude].split(/,\s*/)
+excludes += (options[:exclude] || "").split(/,\s*/)
 excludes_str = excludes.collect{|s| "--exclude '#{s}'" } * " "
 
 test_str = options[:test] ? '-nv' : ''
 
 source, target, _sep, *other = ARGV