modifying vim-aruino-serial to open new terminal tab with set theme rather than opening a new terminal window with 'Default' theme

Author: jplaut

plugin/vim-arduino-serial

@@ -7,11 +7,11 @@ port=$(ls /dev/tty.* | grep usb)
 osascript -e \
   "tell application \"iTerm\"
     activate
-    set myterm to (make new terminal)
+    set myterm to (current terminal)
     tell myterm
-      launch session \"Default\"
-      set _session to current session
-      tell _session
+      set mysession to (make new session at the end of sessions)
+      tell mysession
+        exec command \"/bin/bash -l\"
         write text \"screen $port\"
       end tell
     end tell