cmd/fpkg: call app in-process

Wrapping fortify is slow, painful and error-prone. Start apps in-process instead.

Signed-off-by: Ophestra <cat@gensokyo.uk>

dist/release.sh

@@ -10,10 +10,10 @@ cp -rv "comp" "${out}"
 
 go generate ./...
 go build -trimpath -v -o "${out}/bin/" -ldflags "-s -w -buildid= -extldflags '-static'
-  -X git.gensokyo.uk/security/fortify/internal.Version=${VERSION}
-  -X git.gensokyo.uk/security/fortify/internal.Fsu=/usr/bin/fsu
-  -X git.gensokyo.uk/security/fortify/internal.Fortify=/usr/bin/fortify
-  -X main.Fmain=/usr/bin/fortify" ./...
+  -X git.gensokyo.uk/security/fortify/internal.version=${VERSION}
+  -X git.gensokyo.uk/security/fortify/internal.fsu=/usr/bin/fsu
+  -X main.fmain=/usr/bin/fortify
+  -X main.fpkg=/usr/bin/fpkg" ./...
 
 rm -f "./${out}.tar.gz" && tar -C dist -czf "${out}.tar.gz" "${pname}"
 rm -rf "./${out}"