Fix doxygen HTML warnings in src/feature.

src/feature/dircache/conscache.c

@@ -251,7 +251,7 @@ consensus_cache_find_first(consensus_cache_t *cache,
 }
 
 /**
- * Given a <b>cache</b>, add every entry to <b>out<b> for which
+ * Given a <b>cache</b>, add every entry to <b>out</b> for which
  * <b>key</b>=<b>value</b>.  If <b>key</b> is NULL, add every entry.
  *
  * Do not add any entry that has been marked for removal.

src/feature/dircache/dircache.c

@@ -565,7 +565,7 @@ parse_one_diff_hash(uint8_t *digest, const char *hex, const char *location,
 }
 
 /** If there is an X-Or-Diff-From-Consensus header included in <b>headers</b>,
- * set <b>digest_out<b> to a new smartlist containing every 256-bit
+ * set <b>digest_out</b> to a new smartlist containing every 256-bit
  * hex-encoded digest listed in that header and return 0.  Otherwise return
  * -1.  */
 static int
@@ -1384,7 +1384,7 @@ handle_get_hs_descriptor_v2(dir_connection_t *conn,
   return 0;
 }
 
-/** Helper function for GET /tor/hs/3/<z>. Only for version 3.
+/** Helper function for GET `/tor/hs/3/...`. Only for version 3.
  */
 STATIC int
 handle_get_hs_descriptor_v3(dir_connection_t *conn,