Patch from Bernhard Fischer to make a bunch of symbols static

which were otherwise cluttering the global namespace.

networking/libiproute/ipaddress.c

@@ -48,7 +48,7 @@ static struct
 	struct rtnl_handle *rth;
 } filter;
 
-void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
+static void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
 {
 	fprintf(fp, "<");
 	flags &= ~IFF_RUNNING;