Fix shbang magic "#! /bin/sh" (correct) vs "#!/bin/sh" (incorrect)

build/install-sh

-#!/bin/sh
+#! /bin/sh
 # $OpenLDAP$
 ## Copyright 1998,1999 The OpenLDAP Foundation
 ## COPYING RESTRICTIONS APPLY.  See COPYRIGHT File in top level directory

tests/scripts/defines.sh

-#!/bin/sh
+#! /bin/sh
 # $OpenLDAP$
 
 DATADIR=$SRCDIR/data