return rather than exit

src/freedombone-app-pelican

            --title $"Select Blog Theme" \
            --radiolist $'Choose:' \
            80 40 20 $themelist 2> $data
-
     sel=$?
     case $sel in
-        1) exit 1;;
-        255) exit 1;;
+        1) return;;
+        255) return;;
     esac
     CHOSEN_THEME_INDEX=$(cat $data)
     echo "$CHOSEN_THEME_INDEX" > $PELICAN_BLOG_INSTALL_DIR/.blog-theme-index
            5 $"Exit" off 2> $data
     sel=$?
     case $sel in
-        1) exit 1;;
-        255) exit 1;;
+        1) return;;
+        255) return;;
     esac
     case $(cat $data) in
         1) pelican_new_blog;;