initialize result before passing it to FindFile()

git-svn-id: trunk@40217 -

compiler/systems/t_bsd.pas

@@ -373,14 +373,14 @@ Function TLinkerBSD.GetDarwinPrtobjName(isdll: boolean): TCmdStr;
 var
   startupfile: TCmdStr;
 begin
+  result:='';
+
   startupfile:=GetDarwinCrt1ObjName(isdll);
   if startupfile<>'' then
     begin
      if not librarysearchpath.FindFile(startupfile,false,result) then
        result:='/usr/lib/'+startupfile
     end
-  else
-    result:='';
   result:=maybequoted(result);
 end;