rxrpc: Adjust some whitespace and comments

Remove some excess whitespace, insert some missing spaces and adjust a
couple of comments.

Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/net/rxrpc/ar-accept.c b/net/rxrpc/ar-accept.c
index 73c9054..277731a 100644
--- a/net/rxrpc/ar-accept.c
+++ b/net/rxrpc/ar-accept.c
@@ -415,7 +415,7 @@
 }
 
 /*
- * handle rejectance of a call by userspace
+ * Handle rejection of a call by userspace
  * - reject the call at the front of the queue
  */
 int rxrpc_reject_call(struct rxrpc_sock *rx)
@@ -495,7 +495,6 @@
 	_leave(" = %p", call);
 	return call;
 }
-
 EXPORT_SYMBOL(rxrpc_kernel_accept_call);
 
 /**
@@ -514,5 +513,4 @@
 	_leave(" = %d", ret);
 	return ret;
 }
-
 EXPORT_SYMBOL(rxrpc_kernel_reject_call);