texLive-linkdir: work around a failure

It often failed since 3c6efec2c0, i.e. #4453.
Now it should "work" the same as before.

CC @7c6f434c, maybe?

pkgs/tools/typesetting/tex/texlive/aggregate.nix

@@ -9,13 +9,15 @@ rec {
   phaseNames = [ "doAggregate" ];
 
   doAggregate = fullDepEntry (''
+    set +o pipefail
+
     mkdir -p $out/bin
     for currentPath in ${lib.concatStringsSep " " buildInputs}; do
         echo Symlinking "$currentPath"
         find $currentPath/share/info $currentPath/share/man $(echo $currentPath/texmf*/) -type d | while read; do
             REPLY="''${REPLY#$currentPath}"
             mkdir -p $out/"$REPLY"
-	done
+        done
         find $currentPath/share/info $currentPath/share/man $(echo $currentPath/texmf*/) ! -type d | while read; do
             REPLY="''${REPLY#$currentPath}"
             ln -fs $currentPath/"$REPLY" $out/"$REPLY"