Restore the behaviour changed in r337536, when bad `ipfw delete` command

returns error.

Now -q option only makes it quiet. And when -f flag is specified, the
command will ignore errors and continue executing with next batched
command.

MFC after:	2 weeks

2 files changed, 9 insertions, 4 deletions

diff --git a/sbin/ipfw/ipfw.8 b/sbin/ipfw/ipfw.8
index 588f4c867729..8364de827787 100644
--- a/sbin/ipfw/ipfw.8
+++ b/sbin/ipfw/ipfw.8
@@ -1,7 +1,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 9, 2018
+.Dd August 10, 2018
 .Dt IPFW 8
 .Os
 .Sh NAME
@@ -315,10 +315,15 @@ When listing and
 .Fl d
 is specified, also show expired dynamic rules.
 .It Fl f
-Do not ask for confirmation for commands that can cause problems
-if misused, i.e.,
+Run without prompting for confirmation for commands that can cause problems if misused,
+i.e.,
 .Cm flush .
 If there is no tty associated with the process, this is implied.
+The
+.Cm delete
+command with this flag ignores possible errors,
+i.e., nonexistent rule number.
+And for batched commands execution continues with the next command.
 .It Fl i
 When listing a table (see the
 .Sx LOOKUP TABLES
diff --git a/sbin/ipfw/ipfw2.c b/sbin/ipfw/ipfw2.c
index f6f64357d9b3..32a94edf7c42 100644
--- a/sbin/ipfw/ipfw2.c
+++ b/sbin/ipfw/ipfw2.c
@@ -3314,7 +3314,7 @@ ipfw_delete(char *av[])
 			}
 		}
 	}
-	if (exitval != EX_OK && co.do_quiet == 0)
+	if (exitval != EX_OK && co.do_force == 0)
 		exit(exitval);
 }