Using `variables` instead of `values` in mysqld --help documentation would be more accurate

mysql-test/r/mysqld--help.result

@@ -1107,5 +1107,5 @@ userstat FALSE
 verbose TRUE
 wait-timeout 28800
 
-To see what values a running MySQL server is using, type
+To see what variables a running MySQL server is using, type
 'mysqladmin variables' instead of 'mysqld --verbose --help'.

scripts/mysql_install_db.sh

@@ -214,7 +214,7 @@ cannot_find_file()
   echo "If you compiled from source, you need to either run 'make install' to"
   echo "copy the software into the correct location ready for operation."
   echo "If you don't want to do a full install, you can use the --srcdir"
-  echo "option to only install the mysql database and privilege tables"
+  echo "option to only install the mysql database and privilege tables."
   echo
   echo "If you are using a binary release, you must either be at the top"
   echo "level of the extracted archive, or pass the --basedir option"

sql/mysqld.cc

@@ -7240,7 +7240,7 @@ because execution stopped before plugins were initialized.");
   }
 
   puts("\n\
-To see what values a running MySQL server is using, type\n\
+To see what variables a running MySQL server is using, type\n\
 'mysqladmin variables' instead of 'mysqld --verbose --help'.");
   }
   DBUG_VOID_RETURN;