dd: fix permissions on extracted files (#1222056)

We weren't applying the archive's permissions to newly-created files, so
binaries weren't executable, etc.

This patch adds the missing chmod() call to do so.

Resolves: RHBZ#1222056

utils/dd/rpmutils.c

@@ -405,6 +405,8 @@ int explodeDDRPM(const char *source,
                 needskip = 0;
             } else {
                 needskip = 0;
+                /* set permissions on the new file */
+                chmod(filename+offset, fstat->st_mode);
             }
 
             fclose(fdout);