-call can emit more than one line, so it must be aware that the line
-handler isn't interested in any more lines. However, this fact must
-also be signalled to the higher-level object so that it can detach
-itself from its data source.
+call can emit more than one line, it must be aware that the line handler
+isn't interested in any more lines. However, this fact must also be
+signalled to the higher-level object so that it can detach itself from
+its data source.