From: Junio C Hamano <gitster@pobox.com>
Date: Sat, 10 Dec 2016 22:09:28 GMT
Subject: Re: [PATCH v6 01/16] Git.pm: add subroutines for commenting lines
Message-ID: <xmqqy3zno2qv.fsf@gitster.mtv.corp.google.com>
In-Reply-To: <1481364496.1993.14.camel@sapo.pt>

Vasco Almeida <vascomalmeida@sapo.pt> writes:

> I wonder why this is important when Git errors out when
> core.commentChar is set to more than 1 characters or 0 characters.

I think it should be consistent with the way core.commentchar is
treated in the rest of the system, namely this bit from config.c:

	if (!strcmp(var, "core.commentchar")) {
		if (!value)
			return config_error_nonbool(var);
		else if (!strcasecmp(value, "auto"))
			auto_comment_line_char = 1;
		else if (value[0] && !value[1]) {
			comment_line_char = value[0];
			auto_comment_line_char = 0;
		} else
			return error("core.commentChar should only be one character");
		return 0;
	}

And I think I misread this piece of code.  

We only update comment_line_char from the default "#" when the
configured value is a single-byte character and we ignore incorrect
values in the configuration file.  So I think the patch you sent is
correct after all.