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

Since commit 84af7a6194e4 ("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>
diff --git a/drivers/net/can/usb/Kconfig b/drivers/net/can/usb/Kconfig
index b412f7b..77fa830 100644
--- a/drivers/net/can/usb/Kconfig
+++ b/drivers/net/can/usb/Kconfig
@@ -4,25 +4,25 @@
 
 config CAN_8DEV_USB
 	tristate "8 devices USB2CAN interface"
-	---help---
+	help
 	  This driver supports the USB2CAN interface
 	  from 8 devices (http://www.8devices.com).
 
 config CAN_EMS_USB
 	tristate "EMS CPC-USB/ARM7 CAN/USB interface"
-	---help---
+	help
 	  This driver is for the one channel CPC-USB/ARM7 CAN/USB interface
 	  from EMS Dr. Thomas Wuensche (http://www.ems-wuensche.de).
 
 config CAN_ESD_USB2
 	tristate "ESD USB/2 CAN/USB interface"
-	---help---
+	help
 	  This driver supports the CAN-USB/2 interface
 	  from esd electronic system design gmbh (http://www.esd.eu).
 
 config CAN_GS_USB
 	tristate "Geschwister Schneider UG interfaces"
-	---help---
+	help
 	  This driver supports the Geschwister Schneider and bytewerk.org
 	  candleLight USB CAN interfaces USB/CAN devices
 	  If unsure choose N,
@@ -31,7 +31,7 @@
 
 config CAN_KVASER_USB
 	tristate "Kvaser CAN/USB interface"
-	---help---
+	help
 	  This driver adds support for Kvaser CAN/USB devices like Kvaser
 	  Leaf Light, Kvaser USBcan II and Kvaser Memorator Pro 5xHS.
 
@@ -82,13 +82,13 @@
 
 config CAN_MCBA_USB
 	tristate "Microchip CAN BUS Analyzer interface"
-	---help---
+	help
 	  This driver supports the CAN BUS Analyzer interface
 	  from Microchip (http://www.microchip.com/development-tools/).
 
 config CAN_PEAK_USB
 	tristate "PEAK PCAN-USB/USB Pro interfaces for CAN 2.0b/CAN-FD"
-	---help---
+	help
 	  This driver supports the PEAK-System Technik USB adapters that enable
 	  access to the CAN bus, with repect to the CAN 2.0b and/or CAN-FD
 	  standards, that is:
@@ -104,7 +104,7 @@
 
 config CAN_UCAN
 	tristate "Theobroma Systems UCAN interface"
-	---help---
+	help
 	  This driver supports the Theobroma Systems
 	  UCAN USB-CAN interface.