documentation: -f <fcgiapp> vs. -- <fcgiapp> [args]
In the man page the difference between launching spawn-fcgi with »-f "path arg1 arg2 ..."« and »-- path arg1 arg2 ...« are explained.
However, the help shown by »spawn-fcgi -h« does not mention the difference.
- Change the output of »spawn-fcgi -h« to the following or something similar:
-f <path> filename of the fcgi-application (deprecated; ignored if <fcgiapp> is given; needs /bin/sh which might not be available in a chroot; should be avoided if shell expansion is not needed)
- Mention missing shell expansion in the man page (not everybody knows how exec() works).
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