lang/lua53 - Correct variable order in Makefile.

[russ.haley_gmail.com]

Summary

The patch moves the options variables below the build variables to conform to the handbook.

Test Plan

Tested on FreeBSD 12.1 STABLE. No material change to the functioning of the port.

[andrew_tao173.riddles.org.uk]

5.3.6 is imminent, if there's any point at all in doing this cosmetic change then it could at least be folded into that.

[andrew_tao173.riddles.org.uk]

Also PORTREVISION should not be changed if there are no functional changes, since you'd just be forcing rebuilds/updates of every dependent port for no reason.

[russ.haley_gmail.com]

In D25797#571704, @andrew_tao173.riddles.org.uk wrote:

5.3.6 is imminent, if there's any point at all in doing this cosmetic change then it could at least be folded into that.

In D25797#571705, @andrew_tao173.riddles.org.uk wrote:

Also PORTREVISION should not be changed if there are no functional changes, since you'd just be forcing rebuilds/updates of every dependent port for no reason.

I posted this now while I had the time because I'm prone to forget. We can let it sit until 5.3.6 is released. If I have time I'll update it with the RC1.

[andrew_tao173.riddles.org.uk]

Here's one that updates to 5.3.6 and has more extensive changes to variable order that satisfies portclippy, barring the use of a few variables it doesn't know about.

[kevans]

I'm going to commit this around noon my time (so ~3 hours from the time of writing, CDT/UTC-5) -- I'm going to go ahead and incorporate the pkg-plist change and PKGNAMESUFFIX=${LUA_VER_STR} change from the lua54 port. I'm also considering renaming patch-src__Makefile to patch-src_Makefile in advance so the provenance of the patch remains intact (for now) when lua53 gets repocopied over to lua54.