bugfix for older compilers: have all declarations before instructions

modules/libcom/test/osiSockTest.c

@@ -213,6 +213,7 @@ void udpSockFanoutTestRx(void* raw)
 {
     struct TInfo *info = raw;
     epicsTimeStamp start, now;
+    unsigned nremain = nrepeat;
 #ifdef _WIN32
     /* ms */
     DWORD timeout = 10000;
@@ -222,7 +223,6 @@ void udpSockFanoutTestRx(void* raw)
     timeout.tv_sec = 10;
     timeout.tv_usec = 0;
 #endif
-    unsigned nremain = nrepeat;
 
     (void)epicsTimeGetCurrent(&start);
     now = start;