big refactoring step 1, expect more bugs

tools/mkfimg.c

@@ -1,3 +1,8 @@
+/*
+ *	making a floatimg with some random datas
+ *	an ugly software from tTh - february 2021
+ */
+
 #include  <stdio.h>
 #include  <string.h>
 #include  <stdlib.h>
@@ -137,7 +142,7 @@ switch(type) {
 
 foo = fimg_dump_to_file(&fimg, fname, 0);
 if (foo) {
-	fprintf(stderr, "dump fimg -> %d\n", foo);
+	fprintf(stderr, "dump fimg to %s -> %d\n", fname, foo);
 	exit(1);
 	}