Don't spew unknown expression warnings if @suppress-warnings is set.

src/include/Routes.h

@@ -36,6 +36,8 @@
  * specification for documentation on Matrix routes and the
  * .Xr telodendria-admin
  * page for admin API routes.
+ *
+ * @suppress-warnings
  */
 
 #include <HashMap.h>

tools/src/hdoc.c

@@ -316,6 +316,10 @@ main(int argc, char **argv)
                 }
                 break;
             case HP_UNKNOWN:
+                if (HashMapGet(registers, "suppress-warnings"))
+                {
+                    break;
+                }
                 StreamPrintf(StreamStderr(), "Warning: Unknown expression: %s\n",
                     expr.data.text);
                 break;