#3158 (Apr 27, 2021, 7:29:51 PM)

PR 1543: Linkedfn fixes

	Changes linked fns warn if not united, allow substitutions for linked vecfns (details / githubweb) small fixes (details / githubweb) addd test (details / githubweb) only add gradients if there's truthy tags (details / githubweb) clean up warnings (details / githubweb) closes #1522 (details / githubweb) fix diff, repeatable test printing (details / githubweb)
	Started by upstream project CE_gpkit_PR_unit_tests build number 3158 originally caused by: GitHub pull request #1543 of commit 68a48f07a81e56a6c4e66120333156393a36fdaa, no merge conflicts.
	Revision: 91ead421200b0f11f2f016cf70385fc1984dac8e Repository: https://github.com/convexengineering/gpkit origin/pr/1543/merge origin/master
	SCM: git https://github.com/convexengineering/gpkit Commits since last build: 200 Latest commit: 91ead42
	0 errors, 0 warnings
	Cobertura Coverage Report Packages: 100% Files: 98% Classes: 98% Lines: 91% Conditionals: 100%
	Test Result (no failures)