travis: retrieve the whole git history

jcarpent · jcarpent · commit 88958558123c · 2020-02-05T09:22:54.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,7 @@
 language: python
 sudo: required
+git:
+  depth: false
 compiler:
   - gcc
 # - clang
