This commit fixes 3 issues in the pecl-memcache:  1. Null terminated the meta data string, so that spprint on that string,  will result into uninitialized error in valgrind.  2. When we get the meta data, null terminated at proper place.Currently, it  had one null byte extra.  3. if timeout is not given, I have taken it as 15. Current code is sending it  0 to membase, which is breaks the old behaviour.
This commit fixes 3 issues in the pecl-memcache:
 1. Null terminated the meta data string, so that spprint on that string,
 will result into uninitialized error in valgrind.
 2. When we get the meta data, null terminated at proper place.Currently, it
 had one null byte extra.
 3. if timeout is not given, I have taken it as 15. Current code is sending it
 0 to membase, which is breaks the old behaviour.

zbase/php-pecl-memcache-zynga,zbase/php-pecl-memcache-zynga,zbase/php-pecl-memcache-zynga,zbase/php-pecl-memcache-zynga