rel/rela patch for get_dynamic_reloc_section_name

[Nick Clifton]

Hi Bernd,

+  name = bfd_alloc (abfd, (is_rela ? 6 : 5) + strlen (old_name));
+  if (is_rela)
+    strcpy (name, ".rela");
+  else
+    strcpy (name, ".rel");
+  strcat (name, old_name);

I dislike seeing magic constants like "6" and "5" in the code above. 
How about rewriting this as:

   const char * prefix = is_rela ? ".rela" : ".rel";
   name = bfd_alloc (abfd, strlen (prefix) + strlen (old_name) + 1);
   sprintf (name, "%s%s", prefix, old_name);

Cheers
   Nick