Bring git up to 0.6.6 release version.
diff --git a/mbr.cc b/mbr.cc
index 249fc27..0b29bbb 100644
--- a/mbr.cc
+++ b/mbr.cc
@@ -588,7 +588,7 @@
    // Initialize variables
    nulls = 0;
    MBRSignature = MBR_SIGNATURE;
-   diskSignature = (uint32_t) rand();
+   diskSignature = UINT32_C(0);
 
    partitions[0].status = UINT8_C(0); // Flag the protective part. as unbootable