The Great Embooleanating

A large number of functions had return values and/or arguments changed
to use ``bool`` types instead of ``int``.

src/supervisor/Supervisor.cc

@@ -145,7 +145,7 @@ ParentProcessCheckTimer::ParentProcessCheckTimer(double t, double arg_interval)
 	{
 	}
 
-void ParentProcessCheckTimer::Dispatch(double t, int is_expire)
+void ParentProcessCheckTimer::Dispatch(double t, bool is_expire)
 	{
 	// Note: only simple + portable way of detecting loss of parent
 	// process seems to be polling for change in PPID.  There's platform

src/supervisor/Supervisor.h

@@ -406,7 +406,7 @@ public:
 
 protected:
 
-	void Dispatch(double t, int is_expire) override;
+	void Dispatch(double t, bool is_expire) override;
 
 	double interval;
 };