}
-my %filename_to_checker; # Map a filename to it's pod checker object
-my %id_to_checker; # Map a checksum to it's pod checker object
+my %filename_to_checker; # Map a filename to its pod checker object
+my %id_to_checker; # Map a checksum to its pod checker object
my %nodes; # key is filename, values are nodes in that file.
my %nodes_first_word; # same, but value is first word of each node
my %valid_modules; # List of modules known to exist outside us.