diagnostics: df renamed to disk_full and it also examines files in /tmp/

diagnostics/modules/df.module → diagnostics/modules/disk_full.module

 #!modules/module.sh
 
 help="
-identify which devices are mounted
+shows mounted devices and examines files in /tmp/
 "
 
 run () {
 	df -h
+	echo
+
+	du -ahc /tmp/
 }