msi: Flush errlog before exiting

macLib sends its errors to errlog.

Reported by Bruce Hill, SLAC.

src/ioc/dbtemplate/msi.c

@@ -19,6 +19,7 @@
 #include <dbDefs.h>
 #include <macLib.h>
 #include <ellLib.h>
+#include <errlog.h>
 #include <epicsString.h>
 #include <osiFileName.h>
 
@@ -133,6 +134,7 @@ int main(int argc,char **argv)
         } while (isGlobal || isFile);
         substituteDestruct(substitutePvt);
     }
+    errlogFlush();
     macDeleteHandle(macPvt);
     inputDestruct(inputPvt);
     free(templateName);