strange conversion

[arie-lily]

I have version 1.8.0 installed as you can see:

address@hidden v1.8.0]$ ly2dvi -v
ly2dvi (GNU LilyPond) 1.8.0
address@hidden v1.8.0]$ lilypond -v
GNU LilyPond 1.8.0

So wanted to convert a file, which has the statement
\version "1.6.10" in it, using

convert-ly -e myfile.ly on a lilypond file

But when I opened the file in an editor, it said:

\version "1.7.28"

How come???

arie