treewide: replace '---help---' in Kconfig files with 'help'

Since commit 84af7a6194 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.

This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.

There are a variety of indentation styles found.

  a) 4 spaces + '---help---'
  b) 7 spaces + '---help---'
  c) 8 spaces + '---help---'
  d) 1 space + 1 tab + '---help---'
  e) 1 tab + '---help---'    (correct indentation)
  f) 1 tab + 1 space + '---help---'
  g) 1 tab + 2 spaces + '---help---'

In order to convert all of them to 1 tab + 'help', I ran the
following commend:

  $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

net/Kconfig

@@ -8,7 +8,7 @@ menuconfig NET
 	select NLATTR
 	select GENERIC_NET_UTILS
 	select BPF
-	---help---
+	help
 	  Unless you really know what you are doing, you should say Y here.
 	  The reason is that some programs need kernel networking support even
 	  when running on a stand-alone machine that isn't connected to any
@@ -70,7 +70,7 @@ source "net/xdp/Kconfig"
 
 config INET
 	bool "TCP/IP networking"
-	---help---
+	help
 	  These are the protocols used on the Internet and on most local
 	  Ethernets. It is highly recommended to say Y here (this will enlarge
 	  your kernel by about 400 KB), since some programs (e.g. the X window
@@ -121,7 +121,7 @@ config NETWORK_PHY_TIMESTAMPING
 
 menuconfig NETFILTER
 	bool "Network packet filtering framework (Netfilter)"
-	---help---
+	help
 	  Netfilter is a framework for filtering and mangling network packets
 	  that pass through your Linux box.
 
@@ -192,7 +192,7 @@ config BRIDGE_NETFILTER
 	depends on NETFILTER_ADVANCED
 	select NETFILTER_FAMILY_BRIDGE
 	select SKB_EXTENSIONS
-	---help---
+	help
 	  Enabling this option will let arptables resp. iptables see bridged
 	  ARP resp. IP traffic. If you want a bridging firewall, you probably
 	  want this option enabled.
@@ -268,7 +268,7 @@ config CGROUP_NET_PRIO
 	bool "Network priority cgroup"
 	depends on CGROUPS
 	select SOCK_CGROUP_DATA
-	---help---
+	help
 	  Cgroup subsystem for use in assigning processes to network priorities on
 	  a per-interface basis.
 
@@ -276,7 +276,7 @@ config CGROUP_NET_CLASSID
 	bool "Network classid cgroup"
 	depends on CGROUPS
 	select SOCK_CGROUP_DATA
-	---help---
+	help
 	  Cgroup subsystem for use as general purpose socket classid marker that is
 	  being used in cls_cgroup and for netfilter matching.
 
@@ -294,7 +294,7 @@ config BPF_JIT
 	bool "enable BPF Just In Time compiler"
 	depends on HAVE_CBPF_JIT || HAVE_EBPF_JIT
 	depends on MODULES
-	---help---
+	help
 	  Berkeley Packet Filter filtering capabilities are normally handled
 	  by an interpreter. This option allows kernel to generate a native
 	  code when filter is loaded in memory. This should speedup
@@ -312,7 +312,7 @@ config BPF_STREAM_PARSER
 	depends on CGROUP_BPF
 	select STREAM_PARSER
 	select NET_SOCK_MSG
-	---help---
+	help
 	  Enabling this allows a stream parser to be used with
 	  BPF_MAP_TYPE_SOCKMAP.
 
@@ -324,7 +324,7 @@ config NET_FLOW_LIMIT
 	bool
 	depends on RPS
 	default y
-	---help---
+	help
 	  The network stack has to drop packets when a receive processing CPU's
 	  backlog reaches netdev_max_backlog. If a few out of many active flows
 	  generate the vast majority of load, drop their traffic earlier to
@@ -337,7 +337,7 @@ menu "Network testing"
 config NET_PKTGEN
 	tristate "Packet Generator (USE WITH CAUTION)"
 	depends on INET && PROC_FS
-	---help---
+	help
 	  This module will inject preconfigured packets, at a configurable
 	  rate, out of a given interface.  It is used for network interface
 	  stress testing and performance analysis.  If you don't understand
@@ -352,7 +352,7 @@ config NET_PKTGEN
 config NET_DROP_MONITOR
 	tristate "Network packet drop alerting service"
 	depends on INET && TRACEPOINTS
-	---help---
+	help
 	  This feature provides an alerting service to userspace in the
 	  event that packets are discarded in the network stack.  Alerts
 	  are broadcast via netlink socket to any listening user space
@@ -398,7 +398,7 @@ source "net/ife/Kconfig"
 
 config LWTUNNEL
 	bool "Network light weight tunnels"
-	---help---
+	help
 	  This feature provides an infrastructure to support light weight
 	  tunnels like mpls. There is no netdevice associated with a light
 	  weight tunnel endpoint. Tunnel encapsulation parameters are stored
@@ -408,7 +408,7 @@ config LWTUNNEL_BPF
 	bool "Execute BPF program as route nexthop action"
 	depends on LWTUNNEL && INET
 	default y if LWTUNNEL=y
-	---help---
+	help
 	  Allows to run BPF programs as a nexthop action following a route
 	  lookup for incoming and outgoing packets.