Fixed "umask not declared in this scope" (issue 17)

git-svn-id: https://logkeys.googlecode.com/svn/trunk@35 c501e62c-e7d1-11de-a198-37193048d1ed

src/logkeys.cc

@@ -15,6 +15,7 @@
 #include <unistd.h>
 #include <getopt.h>
 #include <sys/file.h>
+#include <sys/stat.h>
 #include <linux/input.h>
 
 #ifdef HAVE_CONFIG_H