Fix: some dependency package names not emitted

From @mirokuratczyk: "There seems to be a smaller
replace string buffer limit with xargs macOS than
Linux. On the longer package names the second `pkg`
doesn’t get replaced and the dependencies string
is full of `"pkg":"084a27a"`".

ClientLibrary/build-darwin.sh

@@ -78,7 +78,7 @@ prepare_build () {
 
   # see DEPENDENCIES comment in MobileLibrary/Android/make.bash
   cd ${GOPATH}/src/github.com/Psiphon-Labs/psiphon-tunnel-core/ClientLibrary
-  DEPENDENCIES=$(echo -n "{" && GOOS=$1 go list -tags "${BUILD_TAGS}" -f '{{range $dep := .Deps}}{{printf "%s\n" $dep}}{{end}}' | GOOS=$1 xargs go list -tags "${BUILD_TAGS}" -f '{{if not .Standard}}{{.ImportPath}}{{end}}' | xargs -I pkg bash -c 'cd $GOPATH/src/pkg && echo -n "\"pkg\":\"$(git rev-parse --short HEAD)\","' | sed 's/,$/}/')
+  DEPENDENCIES=$(echo -n "{" && GOOS=$1 go list -tags "${BUILD_TAGS}" -f '{{range $dep := .Deps}}{{printf "%s\n" $dep}}{{end}}' | GOOS=$1 xargs go list -tags "${BUILD_TAGS}" -f '{{if not .Standard}}{{.ImportPath}}{{end}}' | xargs -I pkg bash -c 'PKG=pkg && cd $GOPATH/src/$PKG && echo -n "\"$PKG\":\"$(git rev-parse --short HEAD)\","' | sed 's/,$/}/')
 
   LDFLAGS="\
   -X github.com/Psiphon-Labs/psiphon-tunnel-core/psiphon/common.buildDate=$BUILDDATE \

MobileLibrary/iOS/build-psiphon-framework.sh

@@ -134,7 +134,7 @@ GOMOBILEVERSION=$(${GOPATH}/bin/gomobile version | perl -ne '/gomobile version (
 
 # see DEPENDENCIES comment in MobileLibrary/Android/make.bash
 cd ${GOPATH}/src/github.com/Psiphon-Labs/psiphon-tunnel-core/MobileLibrary/psi
-DEPENDENCIES=$(echo -n "{" && GOOS=darwin go list -tags "${BUILD_TAGS}" -f '{{range $dep := .Deps}}{{printf "%s\n" $dep}}{{end}}' | GOOS=darwin xargs go list -tags "${BUILD_TAGS}" -f '{{if not .Standard}}{{.ImportPath}}{{end}}' | xargs -I pkg bash -c 'cd $GOPATH/src/pkg && echo -n "\"pkg\":\"$(git rev-parse --short HEAD)\","' | sed 's/,$/}/')
+DEPENDENCIES=$(echo -n "{" && GOOS=darwin go list -tags "${BUILD_TAGS}" -f '{{range $dep := .Deps}}{{printf "%s\n" $dep}}{{end}}' | GOOS=darwin xargs go list -tags "${BUILD_TAGS}" -f '{{if not .Standard}}{{.ImportPath}}{{end}}' | xargs -I pkg bash -c 'PKG=pkg && cd $GOPATH/src/$PKG && echo -n "\"$PKG\":\"$(git rev-parse --short HEAD)\","' | sed 's/,$/}/')
 
 LDFLAGS="\
 -X github.com/Psiphon-Labs/psiphon-tunnel-core/psiphon/common.buildDate=${BUILDDATE} \