Changes for branch openafs-stable-1_8_x.

13937afs: Avoid giving wrong 'tf' to afs_InitVolSlot
13910LINUX 5.3: Add comments for fallthrough switch caseslinux_5_3
13908ubik: improve logging for database synchonizations
13907ubik: urecovery_AbortAll diagnostic msgs
13906ubik: log important messages at default log level
13904asetkey: Fix random_key for Heimdal
13903vlserver: fix vlentryread() for old vldb formats
13902Avoid calling krb5_free_context(NULL)
13901auth: fix afsconf_GetExtendedCellInfo memory leak
13900auth: plug auth realms memory leaks
13899afs: Free 'addrs' array
13898ubik: Save errno before logging
13897vol: remove empty directories left by vos zap -force
13896vol: avoid query for parent id when deleting disk header
13895venus: fix memory leak
13894cmd: improve help for programs without subcommands
13893viced: consistently enforce host thread quota for ICBS(3)
13892rx: Fix test for end of call queue for LWP
13879The interminable rework of afs_random()gcc9-warnings
13852WINNT: Link tbutc against mtafsutil.libclean-win-build
13851rx: Export rx_GetCallStatusclean-win-build
13850WINNT: Link butc against auditclean-win-build
13849kauth: Move COUNT_REQ to beginning of blockclean-win-build
13848WINNT: Build bubasics before auditclean-win-build
13847afs: Avoid panics in afs_InvalidateAllSegments
13846vlserver: initialize nvlentry elements after readgcc9-warnings
13844ptserver: Increase length limit of namelist, idlist, prlist, prentries
13791aklog: require opt-in to enable single-DES in libkrb5
13765LINUX: Unlock page on afs_linux_read_cache errors
13756rxkad: ticket5.c fix typo in #if statementgcc9-warnings
13750restorevol: replace snprintf with asprintfgcc9-warnings
13749gtx: Avoid incomplete function type in castsclang8-warnings
13748LINUX: Avoid re-taking global lock in afs_dentry_iputavoid-retaking-glock-dentryIput
13745libadmin: appease clang -Wsometimes-uninitializedgcc9-warnings
13744uss: signed/unsigned char falloutgcc9-warnings
13743rework afs_random() yet againgcc9-warnings
13742Avoid incomplete function type in castsgcc9-warnings
13741dumpscan: appease gcc8 -Wformat-overflowgcc9-warnings
13740venus: appease gcc8's -Wformat-stringgcc9-warnings
13739scout: band-aid -Wformat-truncationgcc9-warnings
13738bos: remove smail-notifiergcc9-warnings
13737butc: -Wformat-truncation falloutgcc9-warnings
13736uss: Allocate buffer space for trailing NULgcc9-warnings
13735vlserver: use large enough buffer for rxinfo stringgcc9-warnings
13734vlserver: fix vlentryread() for old vldb formatsgcc9-warnings
13733vol: avoid -Wformat-truncation issues in vol-salvage.cgcc9-warnings
13732vol: check snprintf return values in namei_opsgcc9-warnings
13731vol: fix vutil format-truncation nitgcc9-warnings
13730ptserver: testpt.c format-overflow warninggcc9-warnings
13729uss: uss_procs.c format-overflow warninggcc9-warnings
13728ptserver: Incorrect variable used to print error msggcc9-warnings
13727rxkad: v5der.c format truncation warningsgcc9-warnings