TT#30650 fix DbString $c declaration

* $c is declared as a passed argument in DbString functions

Change-Id: I34ee1cf2bbbbd95f1145c787fddd7af556f648d6

lib/NGCP/Panel/Utils/DbStrings.pm

@@ -4,7 +4,7 @@ use warnings;
 use strict;
 
 sub localize {
-    my $c;
+    my $c = shift;
 
     $c->loc('Lock Level');
     $c->loc('See "lock_voip_account_subscriber" for a list of possible values. A lock value of "none" will not be returned to the caller. Read-only setting.');
@@ -196,7 +196,7 @@ sub localize {
 }
 
 sub form_strings {
-    my $c;
+    my $c = shift;
 
     #NGCP::Panel::Form::BillingFee
     #NGCP::Panel::Form::BillingFeeUpload

script/ngcp_panel_dump_db_strings.pl

@@ -24,7 +24,7 @@ use warnings;
 use strict;
 
 sub localize {
-    my $c;
+    my $c = shift;
 
 HEADER_END