buildpackage-rpm: fix one error message

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>

diff --git a/gbp/scripts/buildpackage_rpm.py b/gbp/scripts/buildpackage_rpm.py
index c47e4d0..dcfa3ac 100755 (executable)
--- a/gbp/scripts/buildpackage_rpm.py
+++ b/gbp/scripts/buildpackage_rpm.py
@@ -620,7 +620,8 @@ def main(argv):
                                        tree, options.orig_prefix,
                                        options.comp_level,
                                        options.with_submodules):
-                        raise GbpError, "Cannot create source tarball at '%s'" % export_dir
+                        raise GbpError("Cannot create source tarball at '%s'" %
+                                        source_dir)
             # Non-native packages: create orig tarball from upstream
             elif spec.orig_src:
                  prepare_upstream_tarball(repo, spec, options, source_dir)