update -h verbiage

tools/mkfimg.c

@@ -29,7 +29,12 @@ return -1;
 static void help(int lj)
 {
 
-puts("Usage:\n\tmkfimg [options]  quux.fimg width height\n");
+puts("Usage:\tmkfimg [options]  quux.fimg width height");
+
+puts("\t-k N.N\tgive a float parameter");
+puts("\t-t bla\t\howto make the pic");
+puts("\t\t\tblack, drand48...");
+puts("\t-v\tincrease verbosity");
 
 if (verbosity) fimg_print_version(1);