9p: typo fixes and minor cleanups

Typo fixes and minor cleanups for v9fs

Signed-off-by: Rob Landley <rob@landley.net>
Reviewed-by: Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 051a99f..d26d5e9 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -60,7 +60,7 @@
 };
 
 /**
- * enum p9_req_status_t - virtio request status
+ * enum p9_req_status_t - status of a request
  * @REQ_STATUS_IDLE: request slot unused
  * @REQ_STATUS_ALLOC: request has been allocated but not sent
  * @REQ_STATUS_UNSENT: request waiting to be sent