Fix paths of binaries in .deb packages.

To be cherry-picked for bazelbuild#2472.

Fixes bazelbuild#2605.

--
Change-Id: Idfd1bf264ceb696ca766268c8a16891476ee33b1
Reviewed-on: https://cr.bazel.build/9111
PiperOrigin-RevId: 148749784
MOS_MIGRATED_REVID=148749784

Author: katre

scripts/packages/debian/BUILD

@@ -14,7 +14,7 @@ pkg_tar(
     ],
     mode = "0755",
     package_dir = "/usr/bin",
-    strip_prefix = ".",
+    strip_prefix = "/scripts/packages",
 )
 
 pkg_tar(