X11: Consume padding at end of clipboard data message so that we don't lose sync at the framing layer. Misc other tidy-ups too.
X11: Consume padding at end of clipboard data message so that we don't lose sync at the framing layer. Misc other tidy-ups too.
abainbridge/deadfrog-lib,abainbridge/deadfrog-lib,abainbridge/deadfrog-lib