geod should add cct's "-c" option, to finally allow it to also accept lon,lat input order

[jidanni]

If geod(1) added cct(1)'s -c option, the user could avoid elaborate
workarounds to get the input order ready for it,

$ cat Makefile
porS=120.866551 24.182822
tpc158=120.8710656 24.1873743
r= $(lastword $(1)) $(firstword $(1))
yukky:
	echo $(call r, $(tpc158)) $(call r, $(porS)) | geod +ellps=WGS84 -p -f %.6f -I
better: #if we could use cct -c's option
	echo $(tpc158) $(porS) | geod -c 1,2 +ellps=WGS84 -p -f %.6f -I

This is even more pertinent, as geod(1) demands lat,lon order, the
opposite from the default order of proj(1), cs2cs(1), and cct(1).

[kbevers]

Just for clarification, cs2cs and cct does not have a default order. The reason is explained here: https://proj.org/en/9.4/faq.html#why-is-the-axis-ordering-in-proj-not-consistent

With that said, I think this would be a nice addition to geod.