in heapdump17 data output by go1.9.4, the architecture field of "dump params" record is a string, not a uvarint... [5]"amd64" in my case.
diff --git a/heapdump15-through-heapdump17.md b/heapdump15-through-heapdump17.md
index a014967..0b076d7 100644
--- a/heapdump15-through-heapdump17.md
+++ b/heapdump15-through-heapdump17.md
@@ -102,7 +102,7 @@
* uvarint: pointer size in bytes
* uvarint: starting address of heap
* uvarint: ending address of heap
- * uvarint: thechar = architecture specifier
+ * string: architecture name
* string: GOEXPERIMENT environment variable value
* uvarint: runtime.ncpu