I have a file which has several lines.
I wish to update the file while making sure that the last visible character of each line of the file is a single quote
'. In case not, then we should add the single quote at the end of each line.
If the single quote is the last character in a line then leave it as is.
fahsjhjkhkjhjhajkhjf afasfsfsfffsfasf' aaffa' sfff wfafsfsaffs' fsafsfs'afffafsasf
fahsjhjkhkjhjhajkhjf' afasfsfsfffsfasf' aaffa' sfff' wfafsfsaffs' fsafsfs'afffafsasf'