try to run MAKEDEV if i2c-dev device files are missing before aborting (adapted fedora patch)

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@4571 7894878c-1315-0410-8ee3-d5d059ff63e0

prog/detect/sensors-detect

@@ -2175,6 +2175,9 @@ sub initialize_conf
   }
 
   if (!($use_devfs || $use_udev)) {
+    if (! -c '/dev/i2c-0' && -x '/sbin/MAKEDEV') {
+      system("/sbin/MAKEDEV i2c");
+    }
     if (-c '/dev/i2c-0') {
       $dev_i2c = '/dev/i2c-';
     } else { # default