Kconfig: replace "--- help ---" with "---help---"

There are three Kconfig entries with "--- help ---" attributes, and over
2000 Kconfig entries with "---help---" attributes.  Apparently the three
attributes with embedded spaces are valid. Still, I see little reason
for using this obscure variant. And replacing those three attributes
with the common variant makes grepping Kconfig files for help texts a
bit easier too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/net/caif/Kconfig b/net/caif/Kconfig
index 936361e..d369495 100644
--- a/net/caif/Kconfig
+++ b/net/caif/Kconfig
@@ -25,7 +25,7 @@
 	bool "Enable Debug"
 	depends on CAIF
 	default n
-	--- help ---
+	---help---
 	Enable the inclusion of debug code in the CAIF stack.
 	Be aware that doing this will impact performance.
 	If unsure say N.