[Swan-commit] Changes to ref refs/heads/main

[Andrew Cagney]

New commits:
commit 8291353f205ae220f45f8d61735eb83c382ef6b9
Author: Andrew Cagney <cagney at gnu.org>
Date:   Tue Dec 22 14:32:33 2020 -0500

    building: drop <<| ...>> from implicit rule
    
    New warning indicates it is ignored by GNU Make.