harness: drop '.' arg from editor invocation

Author: nodeselector

test/integration/harness.rb

@@ -1109,8 +1109,8 @@ def shell
                   end
             if dir
               editor = ENV["EDITOR"] || "code"
-              puts "\e[2m$ pushd #{dir} && #{editor} . && popd\e[0m"
-              system("bash", "-c", "pushd #{Shellwords.shellescape(dir)} && #{editor} . && popd")
+              puts "\e[2m$ pushd #{dir} && #{editor} && popd\e[0m"
+              system("bash", "-c", "pushd #{Shellwords.shellescape(dir)} && #{editor} && popd")
             else
               puts "No active scenario directory."
             end