dietpi-globals: G_CHECK_ROOT_USER: detect login shell correctly

Author: MichaIng

dietpi/func/dietpi-globals

@@ -392,7 +392,7 @@ $grey─────────────────────────
 		(( $EUID )) || return 0
 
 		# Invoking shell is not a script
-		if [[ $0 == 'bash' || $0 == *'/bash' ]]
+		if [[ $0 == '-bash' || $0 == 'bash' || $0 == *'/bash' ]]
 		then
 			# Invoking function is a G_* function, try to run with G_SUDO
 			if [[ ${FUNCNAME[1]} == 'G_'* ]]