libphonenumber: fix reproducible builds patch

diff --git a/tools/cpp/src/cpp-build/generate_geocoding_data.cc b/tools/cpp/src/cpp-build/generate_geocoding_data.cc

index 205947e831..1e628e2cd2 100644

--- a/tools/cpp/src/cpp-build/generate_geocoding_data.cc

+++ b/tools/cpp/src/cpp-build/generate_geocoding_data.cc

@@ -97,7 +97,8 @@ class DirEntry {

--- a/tools/cpp/src/cpp-build/generate_geocoding_data.cc.orig	1970-01-01 01:00:01.000000000 +0100

+++ b/tools/cpp/src/cpp-build/generate_geocoding_data.cc	2024-01-16 19:03:45.409089423 +0100

@@ -94,7 +94,8 @@

   DirEntryKinds kind_;

 };

 // success.

 bool ListDirectory(const string& path, vector<DirEntry>* entries) {

   entries->clear();

@@ -135,6 +136,9 @@ bool ListDirectory(const string& path, vector<DirEntry>* entries) {

     }

     entries->push_back(DirEntry(entry->d_name, kind));

   }

@@ -114,8 +115,14 @@

     // http://pubs.opengroup.org/onlinepubs/9699919799/functions/readdir.html

     errno = 0;

     entry = readdir(dir);

+    if (errno != 0) {

+      return false;

+    }

     if (entry == NULL) {

-      return errno == 0;

+      std::sort(

+          entries->begin(), entries->end(),

+          [](const DirEntry& a, const DirEntry& b) { return a.name() < b.name(); });

+      return true;

     }

 // Returns true if s ends with suffix.

     if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) {

        continue;

  };

  patches = [

    # Submitted upstream: https://github.com/google/libphonenumber/pull/2921

    # An earlier version of this patch was submitted upstream but did not get

    # any interest there - https://github.com/google/libphonenumber/pull/2921

    ./build-reproducibility.patch

  ];