scute: Include sexp-parse.h in source files
scute: Include sexp-parse.h in source files

* src/Makefile.am: Add sexp-parse.h in source files.
--

Omitting sexp-parse.h from the list of source files excludes it
from the archive generated by `make dist'.

Signed-off-by: Damien Goutte-Gattat <3a260918a4ae0abc8ac3e544c6df1814a2596a5f@incenp.org>

gpg/scute,gpg/scute,gpg/scute