Change handling of warnings.

Replace 'perl -W' by 'use warnings;'.
The latter is preferred, and '-W'
(instead of '-w') was causing problems with
warnings in DB::mysql::GetInfo.pm.

Signed-off-by: Thomas Hochstein <thh@inter.net>

feedlog.pl

@@ -1,4 +1,4 @@
-#! /usr/bin/perl -W
+#! /usr/bin/perl
 #
 # feedlog.pl
 #
@@ -18,6 +18,7 @@ BEGIN {
   push(@INC, dirname($0));
 }
 use strict;
+use warnings;
 
 use NewsStats;
 

gatherstats.pl

@@ -1,4 +1,4 @@
-#! /usr/bin/perl -W
+#! /usr/bin/perl
 #
 # gatherstats.pl
 #
@@ -18,6 +18,7 @@ BEGIN {
   push(@INC, dirname($0));
 }
 use strict;
+use warnings;
 
 use NewsStats qw(:DEFAULT :TimePeriods ListNewsgroups ParseHierarchies ReadGroupList);
 

groupstats.pl

@@ -1,4 +1,4 @@
-#! /usr/bin/perl -W
+#! /usr/bin/perl
 #
 # groupstats.pl
 #
@@ -18,6 +18,7 @@ BEGIN {
   push(@INC, dirname($0));
 }
 use strict;
+use warnings;
 
 use NewsStats qw(:DEFAULT :TimePeriods :Output :SQLHelper ReadGroupList);
 

install/install.pl

@@ -1,4 +1,4 @@
-#! /usr/bin/perl -W
+#! /usr/bin/perl
 #
 # install.pl
 #
@@ -18,6 +18,7 @@ BEGIN {
   push(@INC, dirname($0).'/..');
 }
 use strict;
+use warnings;
 
 use NewsStats qw(:DEFAULT);