po: Add missing perl programs and modules to POTFILES

debian/changelog

@@ -1,5 +1,9 @@
 dpkg (1.17.17) UNRELEASED; urgency=low
 
+  [ Guillem Jover ]
+  * Add dpkg-vendor, Dpkg/File.pm and Dpkg/Util.pm to the list of files with
+    translatable strings, so that they can be translated.
+
   [ Updated programs translations ]
   * German (Sven Joachim).
   * Vietnamese (Trần Ngọc Quân).

scripts/po/POTFILES.in

@@ -15,6 +15,7 @@ scripts/dpkg-scanpackages.pl
 scripts/dpkg-scansources.pl
 scripts/dpkg-shlibdeps.pl
 scripts/dpkg-source.pl
+scripts/dpkg-vendor.pl
 scripts/changelog/debian.pl
 scripts/Dpkg/Arch.pm
 scripts/Dpkg/BuildEnv.pm
@@ -42,6 +43,7 @@ scripts/Dpkg/Deps.pm
 scripts/Dpkg/Dist/Files.pm
 scripts/Dpkg/ErrorHandling.pm
 scripts/Dpkg/Exit.pm
+scripts/Dpkg/File.pm
 scripts/Dpkg/Index.pm
 scripts/Dpkg/Interface/Storable.pm
 scripts/Dpkg/IPC.pm
@@ -65,6 +67,7 @@ scripts/Dpkg/Source/Package/V3/Git.pm
 scripts/Dpkg/Source/Package/V3/Quilt.pm
 scripts/Dpkg/Source/Quilt.pm
 scripts/Dpkg/Substvars.pm
+scripts/Dpkg/Util.pm
 scripts/Dpkg/Vars.pm
 scripts/Dpkg/Vendor.pm
 scripts/Dpkg/Vendor/Debian.pm