Initialize matrix during name parsing

Before:
$ fc-match sans:matrix=2 -v | grep matrix
	matrix: [2 6.95183e-310; 0 0](s)

After:
$ fc-match sans:matrix=2 -v | grep matrix
	matrix: [2 0; 0 1](s)

src/fcname.c

@@ -595,6 +595,7 @@ FcNameConvert (FcType type, FcChar8 *string)
 	v.u.d = strtod ((char *) string, 0);
 	break;
     case FcTypeMatrix:
+	m.xx = m.yy = 1.; m.xy = m.yx = 0.;
 	sscanf ((char *) string, "%lg %lg %lg %lg", &m.xx, &m.xy, &m.yx, &m.yy);
 	v.u.m = FcMatrixCopy (&m);
 	break;