dpkg-source: Don't use any substvarsfile by default

* scripts/dpkg-source.pl: Revert to the old behaviour of not using any
substvars file.
* man/dpkg-source.1: Fix the default value of the -T option.

man/ChangeLog

@@ -1,3 +1,7 @@
+2008-01-17  Raphael Hertzog  <hertzog@debian.org>
+
+	* dpkg-source.1: Fix default value of -T parameter.
+
 2008-01-13  Frank Lichtenheld  <djpig@debian.org>
 
 	* dpkg-parsechangelog.1: Document the new

man/dpkg-source.1

@@ -93,8 +93,7 @@ See \fBdeb\-substvars\fP(5) for a discussion of output substitution.
 .BI \-T substvarsfile
 Read substitution variables in
 .IR substvarsfile ;
-the default is
-.BR debian/substvars .
+the default is to not read any file.
 .TP
 .BI \-D field = value
 Override or add an output control file field.

scripts/dpkg-source.pl

@@ -25,7 +25,7 @@ my %notfileobject;
 my $fn;
 my $ur;
 
-my $varlistfile = "debian/substvars";
+my $varlistfile;
 my $controlfile;
 my $changelogfile;
 my $changelogformat;