ipv6: White-space cleansing : Line Layouts

This patch makes no changes to the logic of the code but simply addresses
coding style issues as detected by checkpatch.

Both objdump and diff -w show no differences.

A number of items are addressed in this patch:
* Multiple spaces converted to tabs
* Spaces before tabs removed.
* Spaces in pointer typing cleansed (char *)foo etc.
* Remove space after sizeof
* Ensure spacing around comparators such as if statements.

Signed-off-by: Ian Morris <ipm@chirality.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
index 5ec867e..fc24c39 100644
--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -35,7 +35,7 @@
 			if (found_rhdr)
 				return offset;
 			break;
-		default :
+		default:
 			return offset;
 		}