documentation improvements, gcc 4.3 warning fix

Util/include/Poco/Util/HelpFormatter.h

@@ -1,7 +1,7 @@
 //
 // HelpFormatter.h
 //
-// $Id: //poco/svn/Util/include/Poco/Util/HelpFormatter.h#1 $
+// $Id: //poco/Main/Util/include/Poco/Util/HelpFormatter.h#3 $
 //
 // Library: Util
 // Package: Options
@@ -116,6 +116,9 @@ public:
 		/// Enables Unix-style options. Both short and long option names
 		/// are printed if Unix-style is set. Otherwise, only long option
 		/// names are printed.
+		///
+		/// After calling setUnixStyle(), setAutoIndent() should be called
+		/// as well to ensure proper help text formatting.
 		
 	bool isUnixStyle() const;
 		/// Returns if Unix-style options are set.

Util/src/ServerApplication.cpp

@@ -1,7 +1,7 @@
 //
 // ServerApplication.cpp
 //
-// $Id: //poco/Main/Util/src/ServerApplication.cpp#27 $
+// $Id: //poco/Main/Util/src/ServerApplication.cpp#28 $
 //
 // Library: Util
 // Package: Application
@@ -472,9 +472,12 @@ void ServerApplication::beDaemon()
 	// instead of just closing them. This avoids
 	// issues with third party/legacy code writing
 	// stuff to stdout/stderr.
-	freopen("/dev/null", "r+", stdin);
-	freopen("/dev/null", "r+", stdout);
-	freopen("/dev/null", "r+", stderr);
+	FILE* fin  = freopen("/dev/null", "r+", stdin);
+	if (!fin) throw Poco::OpenFileException("Cannot attach stdin to /dev/null");
+	FILE* fout = freopen("/dev/null", "r+", stdout);
+	if (!fout) throw Poco::OpenFileException("Cannot attach stdout to /dev/null");
+	FILE* ferr = freopen("/dev/null", "r+", stderr);
+	if (!ferr) throw Poco::OpenFileException("Cannot attach stderr to /dev/null");
 }