patchgit-gui (MinGW): make use of MSys2's msgfmt

When Git for Windows was still based on MSys1, we had no gettext, ergo no msgfmt, either. Therefore, we introduced a small and simple Tcl script to perform the same task.

However, with MSys2, we no longer need that because we have a proper msgfmt executable. Plus, the po2msg.sh script somehow manages to hang when run in parallel in Git for Windows' SDK (symptom: the Continuous Testing tasks timing out).

Two reasons to use real msgfmt.exe instead.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---

	This hopefully fixes the hangs with the Windows builds triggered
	by Travis. It was a tough one to figure out originally, and it is
	my fault for prioritizing other patch contributions of this one;
	Git for Windows has been carrying this patch since April 6th, 2015.

	Pat, I still have a couple of Pull Request open in your repository
	at https://github.com/patthoyts/git-gui/pulls/dscho that await any
	reaction since October 14th last year. Please let me know when you
	are ready to accept code contributions again. In the meantime, I
	will send git-gui patches to this here mailing list, Cc:ing you,
	and hoping that Junio will take the patches.

Published-As: https://github.com/dscho/git/releases/tag/git-gui-msgfmt-on-windows-v1
Fetch-It-Via: git fetch https://github.com/dscho/git git-gui-msgfmt-on-windows-v1

 git-gui/Makefile | 2 ++
 1 file changed, 2 insertions(+)

Johannes Schindelin <johannes.schindelin@gmx.de> writes:

I'll try to fetch the latest from Pat, apply this on top and queue it in my tree in the meantime, but that is a lot more involved than simply applying a single patch to a new branch and merging it to 'pu', so it will be done later in today's integration cycle after I handle other topics.

Thanks for working on this.

Awesome :-) Thanks for digging into this problem!

- Lars