[bcn-pm] Use strict

[jluis at escomposlinux.org]

En com.lang.perl.misc hay una thread interesante sobre el uso de strict:
http://groups.google.com/groups?hl=es&lr=&ie=UTF-8&oe=UTF-8&threadm=c063b8%24o2p%241%40plover.com&rnum=1&prev=/groups%3Fie%3DUTF-8%26oe%3DUTF-8%26as_ugroup%3Dcomp.lang.perl.misc%26as_uauthors%3Dmjd%40plover.com%26as_drrb%3Db%26as_mind%3D12%26as_minm%3D5%26as_miny%3D2003%26as_maxd%3D10%26as_maxm%3D2%26as_maxy%3D2004%26as_scoring%3Dd%26lr%3D%26hl%3Des

Con dos respuestas muy buenas de  Mark Jason Dominus:

http://groups.google.com/groups?hl=es&lr=&ie=UTF-8&oe=UTF-8&selm=bvoflo%24chh%241%40plover.com

y

http://groups.google.com/groups?hl=es&lr=&ie=UTF-8&oe=UTF-8&selm=c063b8%24o2p%241%40plover.com