From code coverity scan, syscall return value must be check.

To not alter current behaviour, we simply log the problem,
so, if it occurs, the message will give explanation.

This are only warning as they don't block the server,
but such fail can explain strange (not expected) behaviour later.
Merge branch 'PHP-5.3' into PHP-5.4

* PHP-5.3:
  From code coverity scan, syscall return value must be check.
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  From code coverity scan, syscall return value must be check.
Merge branch 'PHP-5.5'

* PHP-5.5:
  From code coverity scan, syscall return value must be check.
NEWS
Merge branch 'PHP-5.3' into PHP-5.4

* PHP-5.3:
  NEWS
NEWS
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  NEWS
  NEWS
NEWS
Merge branch 'PHP-5.5'

* PHP-5.5:
  NEWS
  NEWS
  NEWS
Merge branch 'PHP-5.3' of https://git.php.net/push/php-src into PHP-5.3

* 'PHP-5.3' of https://git.php.net/push/php-src: (39 commits)
  NEWS
  From code coverity scan, syscall return value must be check.
  fix more resource leaks
  From code coverity scan - fix some memory leak - fix some resources leak (fd) - create fpm_worker_pool_free (shared use) - possible null dref (wp->user and wp->home can be null)
  fixed size array cannot be null
  use limit_extensions as we use security_limit_extensions later (free)
  unused variable
  fix possible null deref (detected by code coverity scan)
  Also fixed bug #64726 in 5.3
  Fix memory realted to #64726
  Fix Test Bug #64714
  PHP 5.3.26 this will be
  Fix NEWS
  Fix bug #64458 (dns_get_record result with string of length -1)
  Fixed incorrect check. SEND_REF may be executed before DO_FCALL when EX(function_state).function is not yet set to the calling function.
  Fixed stream_socket_pair() on Windows x64 and
  - Updated to version 2013.3 (2013c)
  lower the limit, should fit in a byte
  updated lib versions
  allow lcov 1.10
  ...
Merge branch 'PHP-5.4' of https://git.php.net/push/php-src into PHP-5.4

* 'PHP-5.4' of https://git.php.net/push/php-src: (109 commits)
  NEWS
  NEWS
  From code coverity scan, syscall return value must be check.
  fix more resource leaks
  From code coverity scan - fix some memory leak - fix some resources leak (fd) - create fpm_worker_pool_free (shared use) - possible null dref (wp->user and wp->home can be null)
  fixed size array cannot be null
  use limit_extensions as we use security_limit_extensions later (free)
  unused variable
  fix possible null deref (detected by code coverity scan)
  Remove trailing space in NEWS
  NEWS for 514afd67
  Fix bug #64729: compilation failure on x32
  When Apache use RewriteRule to redirect, via mod_proxy_fgi, to php-fpm the SCRIPT_FILENAME may contains the QUERY_STRING.
  Revert "Add CURL_WRAPPERS_ENABLE constant"
  Also fixed bug #64726 in 5.3
  Fixed bug #64726 (Segfault when calling fetch_object on a use_result and DB pointer has closed)
  Fix memory realted to #64726
  updated libmagic.patch
  Fixed bug bug #64713 Compilation warnings in finfo
  Fix Test Bug #64714
  ...
Merge branch 'PHP-5.5' of https://git.php.net/push/php-src into PHP-5.5

* 'PHP-5.5' of https://git.php.net/push/php-src: (310 commits)
  NEWS
  NEWS
  NEWS
  From code coverity scan, syscall return value must be check.
  fix more resource leaks
  From code coverity scan - fix some memory leak - fix some resources leak (fd) - create fpm_worker_pool_free (shared use) - possible null dref (wp->user and wp->home can be null)
  fixed size array cannot be null
  use limit_extensions as we use security_limit_extensions later (free)
  unused variable
  fix possible null deref (detected by code coverity scan)
  updated lib versions
  Remove trailing space in NEWS
  NEWS for 514afd67
  Fix bug #64729: compilation failure on x32
  don't include smart_str.h in a too global header, fixes #64718
  NEWS
  When Apache use RewriteRule to redirect, via mod_proxy_fgi, to php-fpm the SCRIPT_FILENAME may contains the QUERY_STRING.
  Added SoapClient constructor option 'ssl_method' to specify ssl method
  fix #64738, fix implicit type declaration
  Avoid possible conditional jump depended on uninitialised value
  ...
Merge branch 'master' of https://git.php.net/push/php-src

* 'master' of https://git.php.net/push/php-src: (346 commits)
  NEWS
  NEWS
  NEWS
  From code coverity scan, syscall return value must be check.
  fix more resource leaks
  From code coverity scan - fix some memory leak - fix some resources leak (fd) - create fpm_worker_pool_free (shared use) - possible null dref (wp->user and wp->home can be null)
  fixed size array cannot be null
  use limit_extensions as we use security_limit_extensions later (free)
  unused variable
  fix possible null deref (detected by code coverity scan)
  updated lib versions
  Oops
  Harden loopback tests
  Fix race condition when ext/hash/tests run in parallel
  Remove trailing space in NEWS
  NEWS for 514afd67
  Fix bug #64729: compilation failure on x32
  don't include smart_str.h in a too global header, fixes #64718
  NEWS
  When Apache use RewriteRule to redirect, via mod_proxy_fgi, to php-fpm the SCRIPT_FILENAME may contains the QUERY_STRING.
  ...
Fix bug #64765 (enclose IPv6 address into square brackets)
update NEWS
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  update NEWS
  Fix bug #64765 (enclose IPv6 address into square brackets)
update NEWS
Merge branch 'PHP-5.5'

* PHP-5.5:
  update NEWS
  update NEWS
  Fix bug #64765 (enclose IPv6 address into square brackets)
Fixed bug #64159 (Truncated snmpget)