[config files] Don't comment global content unless it is Conf

[ntrel]

When using Tools->Config Files to open a user file that doesn't exist.
This fixes the first line of geany.css being wrongly uncommented (and the rest unchanged) due to toggle comment being used and CSS not having a line comment.

Split out from #3396 as it's independent of it.

[elextr]

There is something seriously broken with Tools->Config Files that needs to be fixed first, see #3451. If thats working this might not be needed.

[elextr]

Ok, #3451 solved, my bad.

So, if I run current Geany git the first line in geany.css is not uncommented.

This does not appear to be needed, maybe check your repo is up to date so #3413 and #3428 are included?

[techee]

@ntrel As @elextr said, I think you are not using an up-to-date Geany, the code looks a bit different now. In #3413 I wasn't sure what to do with the non-conf files and left the old code here

geany/src/ui_utils.c

Lines 2166 to 2171 in 5298f51

	else
	{
	sci_select_all(doc->editor->sci);
	keybindings_send_command(GEANY_KEY_GROUP_FORMAT,
	GEANY_KEYS_FORMAT_COMMENTLINETOGGLE);
	}

but I agree with the idea of your patch and I think the whole else branch should be dropped.

[techee]

I've just created #3576 which does the same thing as this patch, it's just done against the latest code in master where the affected code got modified.

@ntrel Does it look OK to you?

[techee]

I've just merged #3576 so I'm closing this one.