Function istitlechar

pretty.c:941–945

}

static int istitlechar(char c)
{
	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
		(c >= '0' && c <= '9') || c == '.' || c == '_';
}

void format_sanitized_subject(struct strbuf *sb, const char *msg, size_t len)
{