Ensure "mysql-stress-test.pl" is included in both "tar.gz" and RPM packages.

Fixing bug#21023:  "mysql-stress-test.pl" missing in builds


mysql-test/Makefile.am:
  Ensure "mysql-stress-test.pl" is handled by "make install" in the "mysql-test" directory.
  
  This should get the script into the result tree of a RPM build.
  
  Fixing bug#21023.
scripts/make_binary_distribution.sh:
  Copy "mysql-test/mysql-stress-test.pl" into a binary distribution ("tar.gz" and derived formats).
  
  Fixing bug#21023.

mysql-test/Makefile.am

@@ -35,7 +35,7 @@ testdir =	        $(benchdir_root)/mysql-test
 EXTRA_SCRIPTS = 	mysql-test-run-shell.sh install_test_db.sh valgrind.supp $(PRESCRIPTS)
 EXTRA_DIST = 		$(EXTRA_SCRIPTS) suite
 GENSCRIPTS =		mysql-test-run-shell mysql-test-run install_test_db mtr
-PRESCRIPTS =		mysql-test-run.pl
+PRESCRIPTS =		mysql-test-run.pl mysql-stress-test.pl
 test_SCRIPTS = 		$(GENSCRIPTS) $(PRESCRIPTS)
 test_DATA = 		std_data/client-key.pem \
 			std_data/client-cert.pem \

scripts/make_binary_distribution.sh

@@ -284,7 +284,8 @@ rm -f $MYSQL_SHARE/Makefile* $MYSQL_SHARE/*/*.OLD
 copyfileto $BASE/mysql-test \
          mysql-test/mysql-test-run mysql-test/install_test_db \
          mysql-test/mysql-test-run.pl mysql-test/README \
-	 mysql-test/valgrind.supp \
+         mysql-test/mysql-stress-test.pl \
+         mysql-test/valgrind.supp \
          netware/mysql_test_run.nlm netware/install_test_db.ncf
 
 $CP mysql-test/lib/*.pl  $BASE/mysql-test/lib