Properly mark configuration files in the Debian package.

Fixes #6020.

Closes #6022.

Change-Id: If924c752d0bbaa9a442dd6088c7589461fb18e28
PiperOrigin-RevId: 211069329
diff --git a/scripts/packages/debian/BUILD b/scripts/packages/debian/BUILD
index f7ab8cd..a8612a1 100644
--- a/scripts/packages/debian/BUILD
+++ b/scripts/packages/debian/BUILD
@@ -70,6 +70,10 @@
     name = "bazel-debian",
     architecture = "amd64",
     built_using = "bazel (HEAD)",
+    conffiles = [
+        "etc/bash_completion.d/bazel",
+        "etc/bazel.bazelrc",
+    ],
     data = ":debian-data",
     depends = [
         # Keep in sync with Depends section in ./control