Overly cryptic error message when fsarchiver command line parser fails on "id=0, dest=/dev/sda2" : blank is treated as EOL

[tebokial]

I spent a day or two pondering what was wrong with the following:

sudo fsarchiver -v -d -j 4 restfs /media/WinLocal/wattos_root_20241008.fsa id=0, dest=/dev/sda2
Creating logfile in /var/log/fsarchiver_2024-10-21_21-07-16_3372.log
Running fsarchiver version=[0.8.7], fileformat=[FsArCh_002]
oper_restore.c#147,convert_argv_to_strdicos(): cannot find "dest=" key in "id=0,"

After several days (and browsing the source code) the problem finally dawned on me: the blank character separating the id=0 and the dest= argument is treated as EOL by your parser. Nowhere is this mentioned in the guide ... even if all your examples abide by your implicit rule. Please mention this logic of your parser explicitly in the guide, and improve the error message ...