patch 1fa87126792bb5a286620f7604fe9c0affd81637
Author: Enrique D. Bosch <presidev@AT@gmail.com>
Date:   Fri Aug 31 22:07:57 CEST 2018
  * Simplify ifempty function
diff -rN -u old-idlebiff/idlebiff new-idlebiff/idlebiff
--- old-idlebiff/idlebiff	2024-05-02 12:43:27.881268139 +0200
+++ new-idlebiff/idlebiff	2024-05-02 12:43:27.885268147 +0200
@@ -30,10 +30,7 @@
 proc or args { foreach x $args { if { $x } { return 1 } }; return 0 }
 proc and args { foreach x $args { if { $x } continue  { return 0 } }; return 1 }
 
-proc ifempty { str alt } \
-{
-  return [ expr { [ eq $str {} ] ? $alt : $str } ]
-}
+proc ifempty { str alt } { if {[ eq $str {} ]} { return $alt } else { return $str } }
 
 proc check_conf_and_set_default { opt default } \
 {