Update the Makefile of Traditional Chinese FreeBSD Documentation Project Primer for PO translation

[wblock]

Summary

Update the Makefile of Traditional Chinese FreeBSD Documentation Project Primer for PO translation

[wblock]

The callout list in the current English FDP includes at least three entries. In most cases, it will do no real harm to have more callouts included in the IMAGES_LIB list than are actually used. It does not harm anything to have more than are actually used here, so I'd say include up to 5.png.

[wblock]

In D5631#121058, @wblock wrote:

The callout list in the current English FDP includes at least three entries. In most cases, it will do no real harm to have more callouts included in the IMAGES_LIB list than are actually used. It does not harm anything to have more than are actually used here, so I'd say include up to 5.png.

Actually, it might be that way already, but this diff did not have context showing it. Please see
https://wiki.freebsd.org/CodeReview#Create_a_Revision_via_Web_Interface

[rcyu]

I update the diff with the full context

[wblock]

Looks okay, although I have not build-tested it. This Makefile should be committed at the same time as a PO-based translation.

[wblock]

Committed in rD48972, https://reviews.freebsd.org/D6869.

[wblock]

Committed in rD48972, https://reviews.freebsd.org/D6869.