MFC r319027,r319028,r319029,r319030,r319031,r319033,r319034,r319035,r319036,r319037...

MFC r319027,r319028,r319029,r319030,r319031,r319033,r319034,r319035,r319036,r319037,r319038,r319039,r319040,r319041,r319042,r319043,r319044,r319045,r319046:

r319027:

lib/libc/tests/nss: use calloc appropriately

The pattern used prior to this commit was `calloc(1, n * sizeof(type))`;
the pattern that should be used however is `calloc(n, sizeof(type))`.

r319028:

Sort make variables to suit style.Makefile(5)

This is being done prior to functional changes.

r319029:

Staticize functions and remove unused variables to aid with bumping WARNS

r319030:

Fix -Wsign-compare warnings

r319031:

getusershell_test: staticize run_tests(..) to fix warnings

r319033:

getserv_test: fix -Wsign-compare and -Wmissing-prototypes warnings

r319034:

getaddrinfo_test: fix -Wsign-compare warnings

r319035:

getrpc_test: fix -Wmissing-prototypes and -Wsign-compare warnings

r319036:

getproto_test: fix -Wmissing-prototypes and -Wsign-compare warnings

r319037:

getaddrinfo_test: mark unused function parameters __unused to fix -Wunused
warnings

r319038:

getusershell_test: mark mdata parameter in compare_usershell __unused

r319039:

getserv_test: mark unused parameters __unused to fix corresponding
warnings

r319040:

getrpc_test: fix -Wunused warnings

- Mark unused function parameters unused.
- Remove an unused function prototype.

r319041:

getproto_test: fix -Wunused warnings

Mark unused parameters __unused in functions.

r319042:

gethostby_test: fix multiple warning types

- Fix -Wmissing-declaration warning by staticizing run_tests.
- Fix -Wsign-compare warnings by casting size_t types to int
  for comparisons.

Reindent some of the code in sdump_hostent(..) to accomodate the
overall changes.

r319043:

getpw_test: fix -Wunused warnings

- Mark unused parameters __unused.
- Put dump_passwd under DEBUG as it's only used in that case.

r319044:

getgr_test: fix -Wunused warnings

r319045:

Fix -Wunused and -Wshadow warnings

r319046:

Fix a -Wunused-but-set-variable warning reported by gcc 6.3.0

git-svn-id: svn://svn.freebsd.org/base/stable/10@319298 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f