backup-audit: Fix shellcheck SC2196, dont use "egrep"

egrep is non-standard and deprecated. Use grep -E instead.

diff --git a/bin/backup-audit b/bin/backup-audit
index 4371bc7ae7ede3e3abb354720edf1684c3521f9e..cb44382a45a7cf0639f34caef5dcb085328ee52b 100755 (executable)
--- a/bin/backup-audit
+++ b/bin/backup-audit
@@ -1,7 +1,7 @@
 #!/bin/bash
 #
 # backup-script system for cloning systems using rsync
-# Copyright (c)2008-2018 Alexander Barton, alex@barton.de
+# Copyright (c)2008-2019 Alexander Barton, alex@barton.de
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -259,7 +259,7 @@ DiffGenerations() {
                        ListDirectory "${gen2_d}" "${dir}" >"$tmp_2"
                        if ! diff -U 0 "$tmp_1" "$tmp_2" >"$tmp_diff"; then
                                BeginDiff "\"$dir\" directory"
-                               tail -n +3 "$tmp_diff" | egrep -v '^@@ ' | PipeDiff
+                               tail -n +3 "$tmp_diff" | grep -Ev '^@@ ' | PipeDiff
                                EndDiff
                                return_code=1
                        fi