lib/cape/capistrano.rb in cape-1.2.0 vs lib/cape/capistrano.rb in cape-1.3.0

@@ -108,9 +108,12 @@
           else
             arguments = "[#{arguments.join ','}]"
           end
           env_hash = {}
           env_block.call(env_hash) if env_block
+          env_hash.reject! do |var_name, var_value|
+            var_name.nil? || var_value.nil?
+          end
           env_strings = env_hash.collect do |var_name, var_value|
             "#{var_name}=#{var_value.inspect}"
           end
           env = env_strings.empty? ? nil : (' ' + env_strings.join(' '))
           command = "cd #{context.current_path} && " +