fix initializer which is not compatible with vxWorks 5

src/StreamCore.cc

@@ -126,7 +126,7 @@ StreamCore* StreamCore::first = NULL;
 StreamCore::
 StreamCore() : StreamBusInterface::Client(),
     next(), streamname(), flags(None), inTerminatorDefined(), outTerminatorDefined(),
-    activeCommand(end), unparsedInput()
+    activeCommand(end), previousResult(Success), numberOfErrors(0), unparsedInput()
 {
     businterface = NULL;
     // add myself to list of streams

src/StreamCore.h

@@ -177,9 +177,9 @@ protected:
     StreamBuffer fieldAddress;
 
     // Keep track of errors to reduce logging frequencies
-    ProtocolResult previousResult = Success;
+    ProtocolResult previousResult;
     time_t lastErrorTime;
-    int numberOfErrors = 0;
+    int numberOfErrors;
 
     StreamIoStatus lastInputStatus;
     bool unparsedInput;