Replace old capit() by field_capitalize() everywhere

capit() is provided by Dpkg::Fields while field_capitalize() is part
of the new Dpkg::Control::Fields API.

scripts/Dpkg/Control.pm

@@ -21,7 +21,6 @@ use warnings;
 
 use Dpkg::Gettext;
 use Dpkg::ErrorHandling;
-use Dpkg::Fields qw(capit);
 use Dpkg::Control::Types;
 use Dpkg::Control::Hash;
 use Dpkg::Control::Fields;

scripts/Dpkg/Shlibs/SymbolFile.pm

@@ -22,7 +22,7 @@ use warnings;
 use Dpkg::Gettext;
 use Dpkg::ErrorHandling;
 use Dpkg::Version qw(vercmp);
-use Dpkg::Fields qw(capit);
+use Dpkg::Control::Fields;
 use Dpkg::Shlibs::Symbol;
 use Dpkg::Arch qw(get_host_arch);
 
@@ -177,7 +177,7 @@ sub load {
 	    push @{$self->{objects}{$$obj_ref}{deps}}, "$1";
 	} elsif (/^\*\s*([^:]+):\s*(.*\S)\s*$/) {
 	    # Add meta-fields
-	    $self->{objects}{$$obj_ref}{fields}{capit($1)} = $2;
+	    $self->{objects}{$$obj_ref}{fields}{field_capitalize($1)} = $2;
 	} elsif (/^(\S+)\s+(.*)$/) {
 	    # New object and dependency template
 	    $$obj_ref = $1;

scripts/dpkg-genchanges.pl

@@ -11,7 +11,7 @@ use Dpkg::Gettext;
 use Dpkg::Checksums;
 use Dpkg::ErrorHandling;
 use Dpkg::Arch qw(get_host_arch debarch_eq debarch_is);
-use Dpkg::Fields qw(:list capit unknown);
+use Dpkg::Fields qw(:list unknown);
 use Dpkg::Compression;
 use Dpkg::Control::Info;
 use Dpkg::Control;

scripts/dpkg-shlibdeps.pl

@@ -18,9 +18,9 @@ use Dpkg::Shlibs qw(find_library @librarypaths);
 use Dpkg::Shlibs::Objdump;
 use Dpkg::Shlibs::SymbolFile;
 use Dpkg::Arch qw(get_host_arch);
-use Dpkg::Fields qw(capit);
 use Dpkg::Deps;
 use Dpkg::Control::Info;
+use Dpkg::Control::Fields;
 
 
 use constant {
@@ -78,7 +78,7 @@ foreach (@ARGV) {
 	-d $admindir ||
 	    error(_g("administrative directory '%s' does not exist"), $admindir);
     } elsif (m/^-d(.*)$/) {
-	$dependencyfield = capit($1);
+	$dependencyfield = field_capitalize($1);
 	defined($depstrength{$dependencyfield}) ||
 	    warning(_g("unrecognised dependency field \`%s'"), $dependencyfield);
     } elsif (m/^-e(.*)$/) {

scripts/dpkg-source.pl

@@ -9,9 +9,10 @@ use Dpkg::Gettext;
 use Dpkg::ErrorHandling;
 use Dpkg::Arch qw(debarch_eq);
 use Dpkg::Deps qw(@src_dep_fields %dep_field_type);
-use Dpkg::Fields qw(:list capit unknown);
+use Dpkg::Fields qw(:list unknown);
 use Dpkg::Compression;
 use Dpkg::Control::Info;
+use Dpkg::Control::Fields;
 use Dpkg::Substvars;
 use Dpkg::Version qw(check_version);
 use Dpkg::Vars;
@@ -170,7 +171,7 @@ if ($options{'opmode'} eq 'build') {
 	    ($fields->{$_} = $v) =~ s/[\r\n]//g; # Merge in a single-line
 	} elsif (m/^Build-(Depends|Conflicts)(-Indep)?$/i) {
 	    my $dep;
-	    my $type = $dep_field_type{capit($_)};
+	    my $type = $dep_field_type{field_capitalize($_)};
 	    $dep = Dpkg::Deps::parse($v, union => $type eq 'union');
 	    error(_g("error occurred while parsing %s"), $_) unless defined $dep;
 	    my $facts = Dpkg::Deps::KnownFacts->new();