MDEV-22010: mtr search for mariadbd first

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

-[ERROR] mysqld: Can't lock aria aria_log_control for exclusive use, error: #. Will retry for 0 seconds
+[ERROR] mariadbd: Can't lock aria aria_log_control for exclusive use, error: #. Will retry for 0 seconds
 [ERROR] Plugin 'Aria' init function returned error.
 [ERROR] Plugin 'Aria' registration as a STORAGE ENGINE failed.
 [Warning] Could not open mysql.plugin table: "Unknown storage engine 'Aria'". Some options may be missing from the help text

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

@@ -10,7 +10,7 @@
 --let $args=--table-cache=5 --max-connections=10 --log-warnings=1 --silent-startup --help --verbose
 
 --exec $MYSQLD_CMD $args > $MYSQL_TMP_DIR/mysqld--help2.txt 2> $MYSQL_TMP_DIR/mysqld--help2.err
---replace_regex /\d\d\d\d-\d*-\d* *\d*:\d*:\d* \d* // /control file '.*aria_log_control'/aria_log_control/ /error: \d+/error: #/
+--replace_regex /mysqld/mariadbd/ /\d\d\d\d-\d*-\d* *\d*:\d*:\d* \d* // /control file '.*aria_log_control'/aria_log_control/ /error: \d+/error: #/
 --cat_file $MYSQL_TMP_DIR/mysqld--help2.err
 
 --echo #

mysql-test/main/shutdown.result

@@ -13,4 +13,4 @@ drop user user1@localhost;
 #
 # MDEV-8491 - On shutdown, report the user and the host executed that.
 #
-FOUND 2 /mysqld(\.exe)? \(initiated by: root\[root\] @ localhost \[(::1)?\]\): Normal shutdown/ in mysqld.1.err
+FOUND 3 /(mysqld|mariadbd)(\.exe)? \(initiated by: root\[root\] @ localhost \[(::1)?\]\): Normal shutdown/ in mysqld.1.err

mysql-test/main/shutdown.test

@@ -34,5 +34,5 @@ drop user user1@localhost;
 --echo # MDEV-8491 - On shutdown, report the user and the host executed that.
 --echo #
 --let SEARCH_FILE= $MYSQLTEST_VARDIR/log/mysqld.1.err
---let SEARCH_PATTERN=mysqld(\.exe)? \(initiated by: root\[root\] @ localhost \[(::1)?\]\): Normal shutdown
+--let SEARCH_PATTERN=(mysqld|mariadbd)(\.exe)? \(initiated by: root\[root\] @ localhost \[(::1)?\]\): Normal shutdown
 --source include/search_pattern_in_file.inc

mysql-test/mysql-test-run.pl

@@ -2154,7 +2154,7 @@ sub find_mysqld {
 
   my ($mysqld_basedir)= $ENV{MTR_BINDIR}|| @_;
 
-  my @mysqld_names= ("mysqld", "mysqld-max-nt", "mysqld-max",
+  my @mysqld_names= ("mariadbd", "mysqld", "mysqld-max-nt", "mysqld-max",
 		     "mysqld-nt");
 
   if ( $opt_debug_server ){