document control protocol router status format surprises when using microdescriptors
In Tor 0.3.0 (or earlier?), we made clients use microdescriptors by default. This changes the format of NS_CONTROL_PORT routerstatus lines, which breaks pytorctl, and therefore the bandwidth authorities.
Apparently, this issue can be resolved by setting UseMicrodescriptors 0 or using 0.2.9.
edit: Let's update control-spec.txt to document the current (surprising) behavior and track further behavior improvements in other tickets.
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