Update lib/install/dev

Co-authored-by: Kevyn Lebouille <kevyn.lebouille@opsone.net>

Author: elalemanyo

lib/install/dev

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-if ! gem list -i foreman; then
+if ! gem list foreman -i --silent; then
   echo "Installing foreman..."
   gem install foreman
 fi