If you use none of these, or if you use one of them and the -e option,
SRC wlll start an editor in which you can compose the comment. Text
-specified via -m, -f, or - becvomes the initial contents of the comment.
+specified via -m, -f, or - becomes the initial contents of the comment.
SRC respects the EDITOR variable and calls it on a temporary file
to create your comment. Th file will have a footer including its