use primary tokens for logical operators instead of alternative tokens

don't start mixing tokens within a project

src/recurrence/recPath/multiIntervalPath/multiIntervalPath.C

@@ -120,7 +120,7 @@ void multiIntervalPath::getRecPath()
 
     Pstream::scatter(numRecIntervals);
 
-    if (not Pstream::master())
+    if (!Pstream::master())
     {
         virtualTimeIndexList_.setSize(numRecIntervals);
     }