Have module print comma as well

This makes it easier to join output from several modules and keep it
valid.  (Given modules *do* print the comma.)

dotfiles/i3/bin/i3staplus

         us) color='' ;;
         *)  color=',"color": "red"' ;;
     esac
-    printf '{"full_text": " %s"%s}' \
+    printf '{"full_text": " %s"%s},' \
         "$layout" "$color"
 }
 
     do
         read line
         case $line in
-            '[{'*)  line="[$(kb_layout),{${line#\[\{}" ;;
-            ',[{'*) line=",[$(kb_layout),{${line#,\[\{}" ;;
+            '[{'*)  line="[$(kb_layout){${line#\[\{}" ;;
+            ',[{'*) line=",[$(kb_layout){${line#,\[\{}" ;;
         esac
         echo "$line"
     done