more classic value for float default parameter

tools/mkfimg.c

@@ -76,7 +76,7 @@ int main(int argc, char *argv[])
 int		foo, opt;
 int		width, height;
 char		*fname;
-float		fvalue = 0.01;
+float		fvalue = 1.0;
 int		type = T_BLACK;
 char		*tname = "wtf?";