libid3tag: Fix gcc4 build
libid3tag: Fix gcc4 build

koletzky/haikuports,moochris/haikuports,koletzky/haikuports,Begasus/haikuports,Begasus/haikuports,Begasus/haikuports,Begasus/haikuports,haikuports/haikuports,koletzky/haikuports,miqlas/haikuports,miqlas/haikuports,nielx/haikuports,Begasus/haikuports,moochris/haikuports,nielx/haikuports,haikuports/haikuports,haikuports/haikuports,nielx/haikuports,miqlas/haikuports,moochris/haikuports,haikuports/haikuports,haikuports/haikuports