epm: move sudo set to set_sudo func

bin/epm

@@ -34,12 +34,7 @@ load_helper()
 
 load_helper epm-sh-functions
 
-# set SUDO not for root user
-SUDO="sudo"
-[ -n "$UID" ] || UID=`id -u`
-if [ $UID = "0" ]; then
-    SUDO=""
-fi
+set_sudo
 
 
 #############################

bin/epm-sh-functions

@@ -69,6 +69,17 @@ fatal()
 	exit 1
 }
 
+set_sudo()
+{
+	# set SUDO not for root user
+	SUDO="sudo"
+	[ -n "$UID" ] || UID=`id -u`
+	if [ $UID = "0" ]; then
+		SUDO=""
+	fi
+}
+
+
 # FIXME: detect if not recognized
 set_pm_type()
 {