Use the standard File::Slurp instead of the Perl6 one. Added suggested...

Use the standard File::Slurp instead of the Perl6 one. Added suggested dependencies to the debian package for the file content check script.

debian/control

@@ -10,7 +10,7 @@ Architecture: all
 Depends: ${misc:Depends}, apache, libapache-mod-php5, php5-json | libapache-mod-php5 (>= 5.2), php5-pgsql, php5-cli, php5-gd, file, cron
 Conflicts: mahara-apache2
 Recommends: postgresql-8.1, clamav, clamav-daemon
-Suggests: php5-imagick
+Suggests: php5-imagick, libfile-slurp-perl, libtext-diff-perl
 Pre-Depends: m4, perl, postgresql-client-8.1
 Description: Mahara is an electronic portfolio, weblog, and resume builder
  Established in 2006, Mahara is the result of a collaborative venture funded by
@@ -44,7 +44,7 @@ Architecture: all
 Depends: ${misc:Depends}, apache2, libapache2-mod-php5, php5-json | libapache2-mod-php5 (>= 5.2), php5-pgsql, php5-cli, php5-gd, file, cron
 Conflicts: mahara-apache
 Recommends: postgresql-8.1, clamav, clamav-daemon
-Suggests: php5-imagick
+Suggests: php5-imagick, libfile-slurp-perl, libtext-diff-perl
 Pre-Depends: m4, perl, postgresql-client-8.1
 Description: Mahara is an electronic portfolio, weblog, and resume builder
  Established in 2006, Mahara is the result of a collaborative venture funded by

scripts/file_content_check.pl

@@ -4,7 +4,7 @@ use strict;
 use warnings;
 use FindBin;
 use File::Find;
-use Perl6::Slurp;
+use File::Slurp qw/slurp/;
 use Text::Diff;
 
 my $EXCLUDE_FILES = [