bugfix: not all users require a password

misc-scripts/db/db-space.pl

@@ -43,8 +43,6 @@ push(@options, "port=s", \$port);
 
 die "Couldn't parse options" if !GetOptions(@options);
 
-die "Must give -password\n" if !defined($pw);
-
 my $cmd = mysql_cmd("show databases");
 open(CMD, $cmd) or die "Couldn't $cmd: $!\n";
 my @databases;
@@ -157,6 +155,7 @@ foreach my $size (sort {$b<=>$a} keys %top_tables) {
 sub mysql_cmd {
   my $mysql_cmd = shift;
 
-  return "mysql -uroot -h$host -u$user -p$pw -P$port -e '$mysql_cmd'|";
+  my $pw_args = $pw ? "-p$pw" : '';
+  return "mysql -uroot -h$host -u$user $pw_args -P$port -e '$mysql_cmd'|";
 }