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#!/bin/sh -efu
### This file is covered by the GNU General Public License,
### which should be included with libshell as the file LICENSE.
### All copyright information are listed in the COPYING.
if [ -z "${__included_shell_error-}" ]; then
__included_shell_error=1
PROG="${PROG:-${0##*/}}"
message_syslog=
message_time=
message_time_format=
message()
{
local arg='' prefix=''
if [ -n "$message_syslog" ]; then
[ ! -t 2 ] || arg=-s
logger $arg -t "$PROG" "$*"
return
fi
[ -z "$message_time" ] ||
prefix="$(date +"${message_time_format:-[%Y-%m-%d %T]} " 2>/dev/null)" ||:
printf %s\\n "${prefix}$PROG: $*" >&2
}
fatal()
{
message "$@"
exit 1
}
quiet="${quiet-}"
verbose="${verbose-}"
verbose()
{
[ -n "$verbose" ] || return 0
message "$@"
}
fi #__included_shell_error
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