Staging: unisys: visornic: Replace '--help--' with 'help' in Kconfig

Replace '--help--' in Kconfig and indent the subsequent text to silence
checkpatch.pl
warning:
WARNING: prefer 'help' over '---help---' for new help texts
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visornic/Kconfig

@@ -5,11 +5,11 @@
 config UNISYS_VISORNIC
 	tristate "Unisys visornic driver"
 	depends on UNISYSSPAR && UNISYS_VISORBUS && NET
-	---help---
-	The Unisys Visornic driver provides support for s-Par network
-	devices exposed on the s-Par visorbus. When a message is sent
-	to visorbus to create a network device, the probe function of
-	visornic is called to create the netdev device. Networking on
-	s-Par switches will not work if this driver is not selected.
-	If you say Y here, you will enable the Unisys visornic driver.
+	help
+		The Unisys Visornic driver provides support for s-Par network
+		devices exposed on the s-Par visorbus. When a message is sent
+		to visorbus to create a network device, the probe function of
+		visornic is called to create the netdev device. Networking on
+		s-Par switches will not work if this driver is not selected.
+		If you say Y here, you will enable the Unisys visornic driver.