remove hard-coded socket paths from some tests

mysql-test/t/grant_cache.test:
  replace hard-coded socket paths with variable containing the appropriate path
mysql-test/t/myisam.test:
  replace hard-coded socket paths with variable containing the appropriate path
mysql-test/t/query_cache_notembedded.test:
  replace hard-coded socket paths with variable containing the appropriate path
mysql-test/t/rpl000015.test:
  replace hard-coded socket paths with variable containing the appropriate path
mysql-test/t/rpl000017.test:
  replace hard-coded socket paths with variable containing the appropriate path
mysql-test/t/rpl_rotate_logs.test:
  replace hard-coded socket paths with variable containing the appropriate path

mysql-test/t/grant_cache.test

@@ -14,7 +14,7 @@ set GLOBAL query_cache_size=1355776;
 
 reset query cache;
 flush status;
-connect (root,localhost,root,,test,$MASTER_MYPORT,master.sock);
+connect (root,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
 connection root;
 show grants for current_user;
 show grants;
@@ -29,7 +29,7 @@ insert into mysqltest.t2 values (3,3,3);
 create table test.t1 (a char (10));
 insert into test.t1 values ("test.t1");
 select * from t1;
-connect (root2,localhost,root,,mysqltest,$MASTER_MYPORT,master.sock);
+connect (root2,localhost,root,,mysqltest,$MASTER_MYPORT,$MASTER_MYSOCK);
 connection root2;
 # put queries in cache
 select * from t1;
@@ -47,7 +47,7 @@ grant SELECT on test.t1 to mysqltest_2@localhost;
 grant SELECT(a) on mysqltest.t1 to mysqltest_3@localhost;
 
 # The following queries should be fetched from cache
-connect (user1,localhost,mysqltest_1,,mysqltest,$MASTER_MYPORT,master.sock);
+connect (user1,localhost,mysqltest_1,,mysqltest,$MASTER_MYPORT,$MASTER_MYSOCK);
 connection user1;
 show grants for current_user();
 show status like "Qcache_queries_in_cache";
@@ -72,12 +72,12 @@ show status like "Qcache_hits";
 show status like "Qcache_not_cached";
 
 # Don't use '' as user because it will pick Unix login
-connect (unkuser,localhost,unkuser,,,$MASTER_MYPORT,master.sock);
+connect (unkuser,localhost,unkuser,,,$MASTER_MYPORT,$MASTER_MYSOCK);
 connection unkuser;
 show grants for current_user();
 
 # The following queries should be fetched from cache
-connect (user2,localhost,mysqltest_2,,mysqltest,$MASTER_MYPORT,master.sock);
+connect (user2,localhost,mysqltest_2,,mysqltest,$MASTER_MYPORT,$MASTER_MYSOCK);
 connection user2;
 select "user2";
 select * from t1;
@@ -92,7 +92,7 @@ show status like "Qcache_hits";
 show status like "Qcache_not_cached";
 
 # The following queries should not be fetched from cache
-connect (user3,localhost,mysqltest_3,,mysqltest,$MASTER_MYPORT,master.sock);
+connect (user3,localhost,mysqltest_3,,mysqltest,$MASTER_MYPORT,$MASTER_MYSOCK);
 connection user3;
 select "user3";
 --replace_result 127.0.0.1 localhost
@@ -113,7 +113,7 @@ show status like "Qcache_hits";
 show status like "Qcache_not_cached";
 
 # Connect without a database
-connect (user4,localhost,mysqltest_1,,*NO-ONE*,$MASTER_MYPORT,master.sock);
+connect (user4,localhost,mysqltest_1,,*NO-ONE*,$MASTER_MYPORT,$MASTER_MYSOCK);
 connection user4;
 select "user4";
 show grants;

mysql-test/t/myisam.test

@@ -495,7 +495,7 @@ insert into t1 values (1),(2),(3),(4),(5),(6);
 insert into t2 values (1,1),(2,1);
 lock tables t1 read local, t2 read local;
 select straight_join * from t1,t2 force index (primary) where t1.a=t2.a;
-connect (root,localhost,root,,test,$MASTER_MYPORT,master.sock);
+connect (root,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
 insert into t2 values(2,0);
 disconnect root;
 connection default;

mysql-test/t/query_cache_notembedded.test

@@ -81,12 +81,12 @@ drop table t1, t2, t3, t11, t21;
 #
 # do not use QC if tables locked (BUG#12385)
 #
-connect (root,localhost,root,,test,$MASTER_MYPORT,master.sock);
+connect (root,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
 connection root;
 CREATE TABLE t1 ( a INT NOT NULL PRIMARY KEY AUTO_INCREMENT ) ENGINE =
 MyISAM;
 LOCK TABLE t1 READ LOCAL;
-connect (root2,localhost,root,,test,$MASTER_MYPORT,master.sock);
+connect (root2,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
 connection root2;
 INSERT INTO t1 VALUES (), (), ();
 connection root;

mysql-test/t/rpl000015.test

-connect (master,localhost,root,,test,$MASTER_MYPORT,master.sock);
-connect (slave,localhost,root,,test,$SLAVE_MYPORT,slave.sock);
+connect (master,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
+connect (slave,localhost,root,,test,$SLAVE_MYPORT,$SLAVE_MYSOCK);
 connection master;
 reset master;
 show master status;

mysql-test/t/rpl000017.test

-connect (master,localhost,root,,test,$MASTER_MYPORT,master.sock);
-connect (slave,localhost,root,,test,$SLAVE_MYPORT,slave.sock);
+connect (master,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
+connect (slave,localhost,root,,test,$SLAVE_MYPORT,$SLAVE_MYSOCK);
 connection master;
 reset master;
 grant replication slave on *.* to replicate@localhost identified by 'aaaaaaaaaaaaaaab';

mysql-test/t/rpl_rotate_logs.test

@@ -9,11 +9,11 @@
 #   changes
 # - Test creating a duplicate key error and recover from it
 
-connect (master,localhost,root,,test,$MASTER_MYPORT,master.sock);
+connect (master,localhost,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
 --disable_warnings
 drop table if exists t1, t2, t3, t4;
 --enable_warnings
-connect (slave,localhost,root,,test,$SLAVE_MYPORT,slave.sock);
+connect (slave,localhost,root,,test,$SLAVE_MYPORT,$SLAVE_MYSOCK);
 system cat /dev/null > var/slave-data/master.info;
 system chmod 000 var/slave-data/master.info;
 connection slave;