arphound: renamed patch file (gcc4.patch => arphound-1.3.2-CXX.patch)

Note:

The former patch file name is a bit misleading as it has nothing to do with
gcc4, but with the usage of the variable CPP which normally points to the
C preprocessor and not to the C++ compiler.

network/arphound/arphound-1.3.2-CXX.patch

@@ -1,8 +1,8 @@
 # --- SDE-COPYRIGHT-NOTE-BEGIN ---
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
-# Filename: package/.../arphound/gcc4.patch
+# Filename: package/.../arphound/arphound-1.3.2-CXX.patch
-# Copyright (C) 2006 The OpenSDE Project
+# Copyright (C) 2006 - 2010 The OpenSDE Project
 #
 # More information can be found in the files COPYING and README.
 #