It looks like the number of carriage returns is what is being counted. Also, the command line is concatenated with the last line of text when I do the cat command. So,
cat newdoc
gives me the last line
be savedorangepi@OrangePi:~
where 'be saved' is the last line of the document with the cmd line continuing on the same line and
wc -l newdoc
returns
9 newdoc
orangepi@OrangePi:~
for a 10 line document without the cmd line continuing on the same line.