[PATCH 3/4] gas/Dwarf5: adjust .debug_line file 0 checking

[Nick Clifton]

Hi Jan,

> First of all when a table entry has a NULL filename, the two inner if()s
> are better done the other way around: The 2nd doesn't depend on what the
> first does. This then renders redundant half of the conditions of the
> other if() and clarifies that subsequently only entry 0 is dealt with
> (indicating that part of the comment was wrong). Finally for there to be
> a usable name in slot 1, files_in_use needs to be larger than 1 and slot
> 1's (rather than slot 0's) name needs to be non-NULL.

Approved - please apply.

Cheers
   Nick