Remove compiler warnings

(Mostly in DBUG_PRINT() and unused arguments)
Fixed bug in query cache when used with traceing (--with-debug)
Fixed memory leak in mysqldump
Removed warnings from mysqltest scripts (replaced -- with #)

mysql-test/mysql-test-run.sh

@@ -182,19 +182,14 @@ if [ -d ./sql ] ; then
    SOURCE_DIST=1
 else
    BINARY_DIST=1
-fi
 
-# ... one level for tar.gz, two levels for a RPM installation
-if [ -d ./bin ] ; then
-   # this is not perfect: we have 
-   #   /usr/share/mysql/   # mysql-test-run  is here, so this is "$MYSQL_TEST_DIR"
-   #   /usr/bin/           # with MySQL client programs
-   # so the existence of "/usr/share/bin/" would make this test fail.
-   BASEDIR=`pwd`
-else
-   cd ..
-   BASEDIR=`pwd`
+  # ... one level for tar.gz, two levels for a RPM installation
+  if [ ! -f ./bin/mysql_upgrade ] ; then
+     # Has to be RPM installation
+    cd ..
+  fi
 fi
+BASEDIR=`pwd`
 
 cd $MYSQL_TEST_DIR
 MYSQL_TEST_WINDIR=$MYSQL_TEST_DIR
@@ -2098,6 +2093,9 @@ then
   $RM -f $MASTER_MYDDIR/log.*
   $RM -f $MASTER_MYDDIR"1"/log.*
 
+  # Remove old log and reject files
+  $RM -f r/*.reject r/*.progress r/*.log r/*.warnings
+
   wait_for_master=$SLEEP_TIME_FOR_FIRST_MASTER
   wait_for_slave=$SLEEP_TIME_FOR_FIRST_SLAVE
   $ECHO "Installing Test Databases"