Show line number when search a single file

This issue was raised as a bug for ack Output line numbers of matches when acking a single file #244 with the following response:

All future development on ack is happening on https://github.com/petdance/ack2. This issue has been moved here: Do we need an option for forcing the printing of the line number? #196

The status of the ack2 request is open.

Output line numbers of matches when acking a single file #244 does include a patch which may resolve the issue as well as the following comment:

Nevertheless using --with-filename option will always print file name and therefore line numbers.

You can append "more" to your command and it will display the file name and line numbers for each result

Example:
ack test test.c more test.c
12: something here that had test
17: something here that had test
32: something here that had test