Fix Deprecated: memcache_connect(): Passing null to parameter #2...

[remicollet]

Using PHP 8.1.0alpha1

TEST 44/87 [tests/035.phpt]
========DIFF========
     bool(true)
     bool(true)
     string(3) "abc"
005+ 
006+ Deprecated: memcache_connect(): Passing null to parameter #2 ($port) of type int is deprecated in /work/GIT/pecl-and-ext/memcache/tests/035.php on line 18
     bool(true)
========DONE========
FAIL memcache::connect() with unix domain socket [tests/035.phpt] 

With this patch

=====================================================================
TEST RESULT SUMMARY
---------------------------------------------------------------------
Exts skipped    :    0
Exts tested     :   63
---------------------------------------------------------------------

Number of tests :   87                78
Tests skipped   :    9 ( 10.3%) --------
Tests warned    :    0 (  0.0%) (  0.0%)
Tests failed    :    0 (  0.0%) (  0.0%)
Tests passed    :   78 ( 89.7%) (100.0%)
---------------------------------------------------------------------
Time taken      :   13 seconds
=====================================================================

[thesource93]

Thanks Remi!