comes from these lines in the "termhandler" file:
please select the profile [New Bashish Tab]
If you edit this file you can comment out these three lines to get rid of the message and the need to press return.
printf "bashish: please select the profile [New Bashish Tab]\nbashish: and press [RETURN]"
If you installed bashish from a deb package, then you can find where termhandler is installed by typing
(assuming the package is called bashish).
dpkg --listfiles bashish | grep termhandler
If that doesn't work, then try
It may take a few minutes, but it will find it.
sudo find / -name "termhandler" -print
You will find the three lines that need commenting-out around line 105 (about 3/4 of the way down the file).
gksu gedit /path/to/termhandler