[Bug-ddrescue] [patch] abort if output file name and log file name are the same.

[Jussi Judin]

When ddrescue starts writing files and log file and output file are the 
same file, it opens output file first and log file after that and as a 
result, if you give those both files the same name, you will have only 
the log file as a result. This patch makes it harder to do mistakes like 
that by aborting if output file name and log file name are the same.

This does not protect against cases where you use full path for one file 
and relative for another or symbolic links but those kind of file name 
screw-ups are probably harder to do by accident.

--
Jussi Judin
https://jjudin.iki.fi/

ddrescue-1.14-alert-if-output-and-log-are-the-same-file.diff
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