development/pudb: Align with template.

Signed-off-by: B. Watson <urchlay@slackware.uk>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

development/pudb/pudb.SlackBuild

@@ -22,13 +22,13 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+cd $(dirname $0) ; CWD=$(pwd)
+
 if ! printf %s "${PYTHON2:=yes}${PYTHON3:=yes}" | grep -q "yes"; then
   echo "Both python versions deselected.  Nothing to do."
   exit 1
 fi
 
-cd $(dirname $0) ; CWD=$(pwd)
-
 PRGNAM=pudb
 VERSION=${VERSION:-2020.1}
 BUILD=${BUILD:-1}