obs/re6st: ignore if find command fails in prerm

obs/re6st/debian/prerm

@@ -5,7 +5,7 @@ pyclean() {
   local IFS='
 '
   find `dpkg -L $1 |sed -n 's,[^/]*\.py$,__pycache__,p' |
-    sort -u` -delete 2>/dev/null
+    sort -u` -delete 2>/dev/null || true
 }
 
 pyclean $DPKG_MAINTSCRIPT_PACKAGE