Nishant Puri has uploaded this change for review.

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Fix five AddressSanitizer direct memory leaks

Release blocks that LeakSanitizer reported as direct leaks:
- Free the sockaddr key when an nfs_ip_name cache entry expires or is
  removed. HashTable_Del was dropping the stored key.
- Record the v4.1 backchannel auth flavor so an AUTH_SYS credential is
  destroyed with the channel. AUTH_NONE remains the shared static auth.
- Drop the extra fullpath refstr taken while scanning exports by path.
- Free the CB_COMPOUND4res tag allocated while decoding a callback reply.
- Free the NSM nodename allocated by the notify thread, and give each
  SM_NOTIFY its own copy so that string can be released.

Change-Id: I4526589cf9a15b261e8c4917167296f14c22bda1
Signed-off-by: Nishant Puri <npuri@redhat.com>
---
M src/MainNFSD/nfs_rpc_callback.c
M src/Protocols/NLM/nsm.c
M src/support/export_mgr.c
M src/support/nfs_ip_name.c
4 files changed, 51 insertions(+), 4 deletions(-)

git pull ssh://review.gerrithub.io:29418/ffilz/nfs-ganesha refs/changes/23/1257223/1

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