Make compilation of tor_memdup_nulterm() with dmalloc

Fixes bug 11605; bugfix on 0.2.4.10-alpha.

changes/bug11605

@@ -0,0 +1,2 @@
+  o Minor bugfixes (dmalloc):
+    - Fix compilation with dmalloc. Fixes bug 11605; bugfix on 0.2.4.10-alpha.

src/common/util.c

@@ -284,7 +284,7 @@ tor_memdup_(const void *mem, size_t len DMALLOC_PARAMS)
 /** As tor_memdup(), but add an extra 0 byte at the end of the resulting
  * memory. */
 void *
-tor_memdup_nulterm(const void *mem, size_t len DMALLOC_PARAMS)
+tor_memdup_nulterm_(const void *mem, size_t len DMALLOC_PARAMS)
 {
   char *dup;
   tor_assert(len < SIZE_T_CEILING+1);