moved an init.sh function to newly created utils.sh

init.sh

@@ -31,7 +31,7 @@ set -o errexit
 # to be complete (even if it's bad practice)
 set +o nounset
 
-# We want english messages
+# We want english messages, all the time (can be redefined in configuration)
 export LC_ALL=C
 export LANG=C
 
@@ -54,12 +54,6 @@ unset lib
 # ==== Basic sanity checks ====
 # =============================
 
-# Check if a function exists, return 0 if so
-function_exists() {
-    declare -f -F $1 > /dev/null
-    return $?
-}
-
 function_exists prnt || (
     echo "*** ERREUR FATALE !"
     echo "*** Il manque des fonctions vitales venant des bibliothèques."