Apply gn format with 'sources' sorting to src/

tools/relocation_packer/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("config.gni")
 import("//testing/test.gni")
 
 assert(relocation_packing_supported)
 
 if (target_cpu == "arm") {
@@ skipping 10 matching lines @@
       "//third_party/elfutils:libelf",
     ]
     configs -= [ "//build/config/compiler:chromium_code" ]
     configs += [ "//build/config/compiler:no_chromium_code" ]
     sources = [
       "src/debug.cc",
       "src/delta_encoder.cc",
       "src/elf_file.cc",
       "src/leb128.cc",
       "src/packer.cc",
+      "src/run_length_encoder.cc",
       "src/sleb128.cc",
-      "src/run_length_encoder.cc",
     ]
   }
 
   # GYP: //tools/relocation_packer/relocation_packer.gyp:relocation_packer
   executable("relocation_packer") {
     defines = [ target_define ]
     deps = [
       ":lib_relocation_packer",
       "//third_party/elfutils:libelf",
     ]
     sources = [
       "src/main.cc",
     ]
   }
 
   # GYP: //tools/relocation_packer/relocation_packer.gyp:relocation_packer_unittests
   test("relocation_packer_unittests") {
     sources = [
       "src/debug_unittest.cc",
       "src/delta_encoder_unittest.cc",
       "src/elf_file_unittest.cc",
       "src/leb128_unittest.cc",
       "src/packer_unittest.cc",
+      "src/run_all_unittests.cc",
+      "src/run_length_encoder_unittest.cc",
       "src/sleb128_unittest.cc",
-      "src/run_length_encoder_unittest.cc",
-      "src/run_all_unittests.cc",
     ]
     rebased_test_data = rebase_path("test_data", root_build_dir)
     data = [
       "test_data/elf_file_unittest_relocs_arm32.so",
       "test_data/elf_file_unittest_relocs_arm32_packed.so",
       "test_data/elf_file_unittest_relocs_arm64.so",
       "test_data/elf_file_unittest_relocs_arm64_packed.so",
     ]
     defines = [
       target_define,
@@ skipping 70 matching lines @@
       "--added-section=$added_section",
       "--test-file",
       rebase_path(test_file, root_build_dir),
       "--packed-output",
       rebase_path(packed_output, root_build_dir),
       "--unpacked-output",
       rebase_path(unpacked_output, root_build_dir),
     ]
   }
 }