add comments

check_size_consistency.pl

@@ -12,8 +12,10 @@ my (undef,undef,$bkpuid,$bkpgid) = getpwnam('backuppc');
 setuid($bkpuid) if ($uid ne $bkpuid);
 setgid($bkpgid) if ($gid ne $bkpgid);
 
+# Precise the host to check
 my $host = $ARGV[0];
 
+# Get values
 my $bpc = BackupPC::Lib->new();
 my @backups = $bpc->BackupInfoRead($host);
 my $mainConf = $bpc->ConfigDataRead();