Change default text (-Any-) of select option in Exposed View Filter
If you use the Better Exposed Filters module you can do this using the views interface. Changed exposed form style to   'better exposed filters' and adjust the settings


  The Better Exposed Filters module replaces the Views' default single- or multi-select boxes with radio buttons or checkboxes, respectively. Description fields and Select All/None links can be added to exposed filters to make for a better user experience.