fix, gives mercy to two zombified tools

upstream: dmd Z due to version lookup
regression: dfmt Z due to version lookup (78544f3)

src/ce_ddemangle.pas

@@ -56,6 +56,8 @@ begin
       ShowWindow:= swoHIDE;
       execute;
       output.Read(s[1], 128);
+      while Running do
+        sleep(1);
     end;
   finally
     free;

src/ce_dfmt.pas

@@ -295,6 +295,8 @@ begin
       majv := Byte(inp[1]) - Byte('0');
       minv := Byte(inp[3]) - Byte('0');
     end;
+    while prc.Running do
+      sleep(1);
 
     prc.Parameters.Clear;
     fDmtWrapper.getParameters(prc.Parameters, majv, minv);