GeanyVC: no feedback / error reporting if commit failed

[eht16]

There is no feedback about a failed GIT commit at all.
No status bar message, no status window message, no message in Help->Debug Messages and no error dialog.

At least one the above should happen to tell the user that the commit did not happen.
IMO there should be a message in Help->Debug Messages at the very least but also some more visible feedback to the user like an error dialog or at least a status bar message.

The only trace you get is the GIT error output on stderr but I guess most people won't want Geany's stderr regularly :).

[eht16]

For easy testing: touch .git/index.lock in some GIT repository.

[elextr]

The only trace you get is the GIT error output on stderr but I guess most people won't want Geany's stderr regularly :).

And for those starting Geany from a desktop menu/icon there is no stderr.