Split nested namespaces declaration in two lines in accordance with C++ Style Guide.

src/version.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 25 matching lines @@
 #define MINOR_VERSION     2
 #define BUILD_NUMBER      5
 #define PATCH_LEVEL       0
 #define CANDIDATE_VERSION true
 
 // Define SONAME to have the SCons build the put a specific SONAME into the
 // shared library instead the generic SONAME generated from the V8 version
 // number. This define is mainly used by the SCons build script.
 #define SONAME            ""
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 int Version::major_ = MAJOR_VERSION;
 int Version::minor_ = MINOR_VERSION;
 int Version::build_ = BUILD_NUMBER;
 int Version::patch_ = PATCH_LEVEL;
 bool Version::candidate_ = CANDIDATE_VERSION;
 const char* Version::soname_ = SONAME;
 
 
 // Calculate the V8 version string.
@@ skipping 21 matching lines @@
       OS::SNPrintF(str, "libv8-%d.%d.%d%s.so",
                    GetMajor(), GetMinor(), GetBuild(), candidate);
     }
   } else {
     // Use specific SONAME.
     OS::SNPrintF(str, "%s", soname_);
   }
 }
 
 } }  // namespace v8::internal