flock: improve usage strings

The current examples miss the best usage of all: specifying the command
and its arguments directly on the command line.  Add that to both the
program usage and the man page.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
script: search shell from path, when necessary

Addresses: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=518532
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
ipcs: fix spacing in summary output

Change 56692a6 introduced spacing error to --summary printing.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
swapon: default to --show if nothing is requested

Proposed-by: Karel Zak <kzak@redhat.com>
References: http://www.spinics.net/lists/util-linux-ng/msg07301.html
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
losetup: fix declarations [smatch scan]

sys-utils/losetup.c:309:2: error: 'for' loop initial declarations are only allowed in C99 mode
sys-utils/losetup.c:374:2: error: 'for' loop initial declarations are only allowed in C99 mode

Signed-off-by: Sami Kerola <kerolasa@iki.fi>