dpkg: Use m_strdup() instead of strdup()

debian/changelog

@@ -4,6 +4,7 @@ dpkg (1.18.6) UNRELEASED; urgency=medium
     could mess up the file queue in some circumstances and leave behind
     files in the filesystem as «pathname».dpkg-new after configuration
     and without traces of the files in the dpkg database. Closes: #823288
+  * Use m_strdup() instead of strdup() in dpkg recursive installation code.
   * Packaging:
     - Bump Standards-Version to 3.9.8 (no changes needed).
 

src/archives.c

@@ -1483,7 +1483,7 @@ archivefiles(const char *const *argv)
           continue;
 
         arglist = m_realloc(arglist, sizeof(char *) * (nfiles + 1));
-        arglist[nfiles++] = strdup(nodename);
+        arglist[nfiles++] = m_strdup(nodename);
       }
 
       treewalk_close(tree);