[RFC] getc/putc -Wunused-value warnings in source.c

[Joel Brobecker]

> Joel> One could easily work around the problem by using fgetc instead of
> Joel> getc, as done in this patch.
> 
> I think this approach is fine.
> 
> I wouldn't even bother with the comment about AIX.[...]

Thanks, Tom. I agree with your reasoning, so attached is the patch
I checked in.

gdb/ChangeLog:

        * source.c (forward_search_command): Replace call to getc
        by call to fgetc.
        (reverse_search_command): Likewise.

Tested on x86_64-linux, and checked in.

-- 
Joel
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