[administrivia] Git should ignore backup files and .loT files
diff --git a/tools/.gitignore b/tools/.gitignore
index 73bcf19..dd5bf7c 100644
--- a/tools/.gitignore
+++ b/tools/.gitignore
@@ -1,3 +1,6 @@
 .arch-inventory
 .arch-ids
 
+*~
+*.loT
+