Add --syslog flag to optionally log to syslog on capable platforms

fs/redirect_stderr.go

@@ -0,0 +1,12 @@
+// Log the panic to the log file - for oses which can't do this
+
+// +build !windows,!darwin,!dragonfly,!freebsd,!linux,!nacl,!netbsd,!openbsd
+
+package fs
+
+import "os"
+
+// redirectStderr to the file passed in
+func redirectStderr(f *os.File) {
+	Errorf(nil, "Can't redirect stderr to file")
+}