Investigate libgcrypt/dumpsexp recipe pkg exclusions

For each excluded package we need to consider whether it needs to be in the baseline.

For example we need to consider:
Is it important that it is kept in the baseline?
Why is it included?
What is the dependency tree that pulls it in?

The LRT source scan identified the following source files:
1 core file GPL-3 or later
libgcrypt-1.6.5-r0-patched.tar/libgcrypt-1.6.5/src/dumpsexp.c
1 doc file GPL-3 or later
libgcrypt-1.6.5-r0-patched.tar/libgcrypt-1.6.5/doc/yat2m.c