File workaround-missing-linked-file.patch of Package debugedit

Previously this error was ignored but now return value of parallel jobs is
propagated, and missing this file fails package build.

It is not clear if this is the correct fix (ie the file accumulates link data,
and initially is missing because no data is accumulated yet) or if this should
have been created elsewhere.

Index: debugedit-5.1/scripts/find-debuginfo.in
===================================================================
--- debugedit-5.1.orig/scripts/find-debuginfo.in
+++ debugedit-5.1/scripts/find-debuginfo.in
@@ -578,7 +578,7 @@ do_file()
   # If this file has multiple links, make the corresponding .debug files
   # all links to one file too.
   if [ $nlinks -gt 1 ]; then
-    grep "^$inum " "$temp/linked" | while read inum linked; do
+    { grep -s "^$inum " "$temp/linked" ||: ; } | while read inum linked; do
       link=$debugfn
       get_debugfn "$linked"
       $verbose && echo "hard linked $link to $debugfn"