Fixed some sprintf warnings

libs_required/ACG/GL/GLFormatInfo.cc

@@ -188,10 +188,7 @@ GLFormatInfo::GLFormatInfo( GLenum _intfmt, GLenum _fmt, GLenum _type, int _r, i
         if (channelCount_ > 3)
           strfmt += "A";
 
-        QString bitCount;
-        bitCount.sprintf("%i", channelBits_[0]);
-
-        strfmt += bitCount;
+        strfmt += QString ("%1").arg(channelBits_[0]);
 
         if (isNormalized())
         {