The read value is useless, so use throwaway variable name

ejabberdctl.template

@@ -146,7 +146,7 @@ debugwarning()
         echo "To bypass permanently this warning, add to ejabberdctl.cfg the line:"
         echo "  EJABBERD_BYPASS_WARNINGS=true"
         echo "Press return to continue"
-        read -r input
+        read -r _
         echo ""
     fi
 }
@@ -169,7 +169,7 @@ livewarning()
         echo "To bypass permanently this warning, add to ejabberdctl.cfg the line:"
         echo "  EJABBERD_BYPASS_WARNINGS=true"
         echo "Press return to continue"
-        read -r input
+        read -r _
         echo ""
     fi
 }