- fixed off-by-one in commandline parsing

- fixed spelling error

bin/pronom_statistics.pl

@@ -41,15 +41,15 @@ GetOptions (
         say "--csvfile=FILE .............. creates a CSV file to store statistics";
         say "--verbose ................... enables more verbose output in standard report";
         say "--noprogress ................ disables progress bar";
-        say "droid_signature_filename..... DROID signature files (container filess not supported yet)";
+        say "droid_signature_filename..... DROID signature files (container files not supported yet)";
     }
 ) or croak "wrong option, try '$0 --help'";
 if ((defined $csv_file) && (-e $csv_file)) {
     croak "CSV file '$csv_file' already exist";
 }
-say "using $#ARGV signature files";
+say "using ",scalar @ARGV," signature files";
 my $progress = Term::ProgressBar->new( $#ARGV );
-for (my $idx=0; $idx < $#ARGV; $idx++) {
+for (my $idx=0; $idx <= $#ARGV; $idx++) {
     my $pronomfile = $ARGV[$idx];
     if ( !defined $pronomfile ) {
         say "you need at least a pronom signature file";