Two of the column headings were separated by spaces rather than a tab.
The other two similar tables used `Return' instead of `Result', so
switch to that at the same time.
.RS 5
.nf
.ta \w'Fformataddr 'u +\w'Aboolean 'u +\w'Rboolean 'u
.RS 5
.nf
.ta \w'Fformataddr 'u +\w'Aboolean 'u +\w'Rboolean 'u
-.I "Function Argument Result Description"
+.I "Function Argument Return Description"
msg integer message number
cur integer message is current (0 or 1)
unseen integer message is unseen (0 or 1)
msg integer message number
cur integer message is current (0 or 1)
unseen integer message is unseen (0 or 1)