drawdag: tagsmod.tag() takes a list of names, not a single name
We were getting lucky on Python 2 since we have only one-byte names,
but on Python 3 badness was happening.
--- a/tests/drawdag.py Wed Aug 23 01:22:59 2017 -0400
+++ b/tests/drawdag.py Wed Aug 23 01:24:01 2017 -0400
@@ -346,7 +346,7 @@
ctx = simplecommitctx(repo, name, pctxs, added)
n = ctx.commit()
committed[name] = n
- tagsmod.tag(repo, name, n, message=None, user=None, date=None,
+ tagsmod.tag(repo, [name], n, message=None, user=None, date=None,
local=True)
# handle special comments