Better termination message

In case a `WARN_LOGFILE` is used it in this file no clear whether doxygen finished correctly or exited beforehand in case a fatal error.
Now a 'Exiting...' is also given in the warning log file in case an error is a fatal error.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/dotgraph.cpp b/src/dotgraph.cpp
index 9b7ddb7..c17523b 100644
--- a/src/dotgraph.cpp
+++ b/src/dotgraph.cpp
@@ -147,7 +147,7 @@ bool DotGraph::prepareDotFile()
 {
   if (!m_dir.exists())
   {
-    err("Output dir %s does not exist!\n", m_dir.path().data()); exit(1);
+    term(1,"Output dir %s does not exist!\n", m_dir.path().data());
   }
 
   QCString sigStr(33);