libfdisk: add ref.counting to ask API

Signed-off-by: Karel Zak <kzak@redhat.com>
agetty: use futimens, check for all in configure.ac

It seems better to warn about --reload in ./configure if futimens or
inotify_init1 are missing.

The patch also replaces futimes() with futimens() to make the code
compatible with Uclibc.

Addresses: https://github.com/karelzak/util-linux/issues/133
Signed-off-by: Karel Zak <kzak@redhat.com>
lib/colors: use static buffers when parse scheme

* use static buffers when parse scheme colors
* cleanup deallocation on error in sequence parser

Signed-off-by: Karel Zak <kzak@redhat.com>