Remove unused parameter from cgit_print_snapshot()
ui-refs: simplify cmp_age logic

The check in parse_user that eventually makes it into committer_date and
tagger_date is:

else if (mode == 3 && isdigit(*p)) {
    *date = atol(p);
    mode++;
}

Since isdigit('-') is always false, date will never be negative. Thus
the sign of this function:

static int cmp_age(int age1, int age2)
{
    if (age1 != 0 && age2 != 0)
        return age2 - age1;

    if (age1 == 0 && age2 == 0)
        return 0;

    if (age1 == 0)
        return +1;

    return -1;
}

Will always be the same as the sign of this function:

static inline int cmp_age(int age1, int age2)
{
    return age2 - age1;
}

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Idea-by: Lukas Fleischer <cgit@cryptocrack.de>
Bump version.
filter: add libravatar email-filter lua script
git: update to 1.9.1

Everything works just bumping the version in Makefile and commit hash
in submodule. No code changes required.
Makefile: use more reliable git tarball mirror
Fix cgit_parse_url when a repo url is contained in another repo url

For example, if I have two repos (remove-suffix is enabled):
  /foo
  /foo/bar

http://cgit/foo/bar/ is interpreted as "repository 'foo', command 'bar'"
instead of "repository 'foo/bar'"
git: update to 1.9.2

Everything works just bumping the version in Makefile and commit hash in
submodule. No code changes required.
remove trailing whitespaces from source files