Make sure we make a move at the end of the search when reaching

maximum depth during a "go movetime ..." search. This prevents
Stockfish from hanging forever after finding a mate in two or
three while running a test suite at a level of a few seconds
per move.

No functional change when playing games at normal time controls.

src/search.cpp

@@ -850,7 +850,7 @@ namespace {
 
     // If we are pondering or in infinite search, we shouldn't print the
     // best move before we are told to do so.
-    if (!AbortSearch && (PonderSearch || InfiniteSearch))
+    if (!AbortSearch && !ExactMaxTime && (PonderSearch || InfiniteSearch))
         wait_for_stop_or_ponderhit();
     else
         // Print final search statistics