safehasattr: pass attribute name as string instead of bytes
This is a step toward replacing `util.safehasattr` usage with plain `hasattr`.
The builtin function behave poorly in Python2 but this was fixed in Python3.
These change are done one by one as they tend to have a small odd to trigger
puzzling breackage.
--- a/mercurial/wireprotov1server.py Wed May 31 12:02:56 2023 -0300
+++ b/mercurial/wireprotov1server.py Thu Feb 02 17:18:24 2023 +0100
@@ -665,7 +665,7 @@
r = exchange.unbundle(
repo, gen, their_heads, b'serve', proto.client()
)
- if util.safehasattr(r, b'addpart'):
+ if util.safehasattr(r, 'addpart'):
# The return looks streamable, we are in the bundle2 case
# and should return a stream.
return wireprototypes.streamreslegacy(gen=r.getchunks())