makeguids: free our input buffer.
makeguids: free our input buffer.

Covscan noticed this, but didn't notice that this is a short lived
program that just parses some tables during the build.  It *sooo*
doesn't matter.

Signed-off-by: Peter Jones <2e0a021e603479ff81838c00c3b770daca4e0214@redhat.com>

rhinstaller/efivar,vathpela/efivar-devel,rhboot/efivar,rhboot/efivar,rhinstaller/efivar