[lex.comment] Slightly clarify what "terminates with" means in the context of a

line comment.

Author: zygoloid

source/lex.tex

@@ -461,7 +461,7 @@
 The characters \tcode{/*} start a comment, which terminates with the
 characters \tcode{*/}. These comments do not nest.
 \indextext{comment!\tcode{//}}%
-The characters \tcode{//} start a comment, which terminates with the
+The characters \tcode{//} start a comment, which terminates immediately before the
 next new-line character. If there is a form-feed or a vertical-tab
 character in such a comment, only white-space characters shall appear
 between it and the new-line that terminates the comment; no diagnostic