c++/10120: single-line comment interfering in the next line

[DJ Delorie]

> 00000710  7d 20 2f 2f 45 52 52 4f  52 20 43 4f 4d 4d 45 4e  |} //ERROR COMMEN|
> 00000720  54 0d 20 20 20 20 20 20  6f 70 65 72 61 74 6f 72  |T.      operator|

That's a Mac line ending - the LF is missing completely.