Fixed main.mysqld-help and connect.drop-open-error tests

mysql-test/main/mysqld--help.test

@@ -23,11 +23,13 @@ perl;
   # their paths may vary:
   @skipvars=qw/basedir open-files-limit general-log-file log plugin-dir plugin-maturity
                log-slow-queries pid-file slow-query-log-file log-basename
+               log-slow-query-file
                datadir slave-load-tmpdir tmpdir socket thread-pool-size
                large-files-support lower-case-file-system system-time-zone
                collation-server character-set-server log-tc-size table-cache
                table-open-cache table-open-cache-instances max-connections
                tls-version version.* password-reuse-check
+               provider-bzip2 provider-lzma provider-lzo
                password-reuse-check-interval/;
 
   # Plugins which may or may not be there:
@@ -39,7 +41,8 @@ perl;
               query-response-time metadata-lock-info locales unix-socket
               wsrep file-key-management cracklib-password-check user-variables
               provider-bzip2 provider-lzma provider-lzo
-              thread-pool-groups thread-pool-queues thread-pool-stats thread-pool-waits/;
+              thread-pool-groups thread-pool-queues thread-pool-stats
+              thread-pool-waits hashicorp provider gssapi/;
 
   # And substitute the content some environment variables with their
   # names:

storage/connect/mysql-test/connect/r/drop-open-error.result

@@ -3,7 +3,7 @@ create table tcon engine=connect table_type=mysql CONNECTION='mysql://root@local
 ERROR HY000: Too long value for 'SRCDEF'
 drop table mdev9949;
 Warnings:
-Warning	1017	Can't find file: './test/mdev9949.dos' (errno: 2 "No such file or directory")
+Warning	1017	Can't find file: 'MYSQLD_DATADIR/test/mdev9949.dos' (errno: 2 "No such file or directory")
 drop table t1;
 select @@secure_file_priv 'must be NULL';
 must be NULL

storage/connect/mysql-test/connect/t/drop-open-error.test

@@ -14,6 +14,7 @@ create table tcon engine=connect table_type=mysql CONNECTION='mysql://root@local
 
 # copy the invalid frm (as created by the statement above before the MDEV-9949 fix)
 copy_file $MTR_SUITE_DIR/std_data/mdev9949.frm $datadir/test/mdev9949.frm;
+--replace_result $datadir MYSQLD_DATADIR/ ./ MYSQLD_DATADIR/
 drop table mdev9949;
 drop table t1;